Practice Question

CAREERWILL
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1. Match the columns. 6. Which is the most important 12. Which of the following was the
Column-A (Class) protein component in milk, both first B vitamin discovered in
i. Chlorophyceae quantitatively and nutritionally, 1897 that is essential in
that accounts for about 80% of amino acid and carbohydrate
ii. Phaeophyceae
the total protein in bovine milk? metabolism and is active in
iii. Rhodophyceae
(a) Actin (b) Albumin energy production reactions?
iv. Cyanophyceae
(c) Pepsin (d) Casein (a) Thiamine (b) Folate
Column-B (Common name)
[SSC CGL 2024]
a. Brown algae (c) Riboflavin (d) Biotin
7. Which of t he following is [SSC CPO 2023]
b. Green algae another name for vitamin C?
c. Blue-green algae 13. Which of the following pairs of
(a) Pyridoxine minerals – need is correct?
d. Red algae (b) Pyridoxal
(a) i - b, ii - c, iii - a, iv - d I. Iron – formation of hemoglobin
(c) Pyridoxamine
(b) i - b, ii - a, iii - d, iv - c II. Sodium – proper functioning
(d) Ascorbic acid of thyroid
(c) i - d, ii - c, iii - b, iv - a [SSC CGL 2024]
(d) i - a, ii - b, iii - c, iv - d (a) Neither I nor II
8. Which non-essential amino
[SSC CGL 2023] acid is synthesised by the (b) Only II
2. Which of t he following is hydroxylation of phenylalanine (c) Both I and II
another name for starch found in a reaction catalysed by (d) Only I
mainly in the pulp of seeds, phenylalanine hydroxylase ? [SSC CPO 2022]
fruits, tubers, roots and stems (a) Cysteine (b) Glycine
of plants, especially in corn, 14. Which food is a good source of
potatoes, wheat and rice? (c) Tyrosine (d) Glutamine complete protein?
[SSC CHSL 2024] (a) Eggs (b) Spinach
(a) Amylum (b) Xanthan
9. Select the INCORRECT statement (c) Lentils (d) Rice
(c) Olestra (d) Saponin
with regards to vitamins.
[SSC CGL 2023] [SSC MTS 2024]
(a) Plants can synthesise
3. What is the common term for 15. If the Glycemic Index (GI) of a
almost all vitamins.
Ancylostoma? specific food is from 70 to 100,
(a) Tapeworm (b) Vitamins are organic then the type of that food is:
compounds.
(b) Roundworm (a) Low - GI food
(c) Some bacteria in the gut do
(c) Filaria worm (b) High - GI food
not produce vitamins.
(d) Hookworm (c) Medium - GI food
(d) Most of the vitamins cannot
[SSC CGL 2023]
get synthesised in sufficient (d) Extremely low - GI food
4. What is the scientific name of the amounts in our body. [SSC MTS 2024]
banyan tree, a large evergreen
tree of Asia characterised by its
[SSC CHSL Tier II 2023] 16. Which of the following vitamins
trunk-like aerial roots? 10. Which is a major essential helps to keep our skin and eyes
lipophilic (fat-soluble) vitamin healthy?
(a) Ficus benghalensis required for the protection of cell
(b) Gossypium herbaceum (a) Vitamin A (b) Vitamin D
membranes and the formation
(c) Santalum album of red blood cells (RBCs)? (c) Vitamin C (d) Vitamin B
(d) Ananas comosus [SSC MTS 2023]
(a) Vitamin A (b) Vitamin C
[SSC CHSL 2023] (c) Vitamin D (d) Vitamin E 17. What happens to the guard
5. What is the common name of [SSC CHSL 2022] cells when water flows into
Parthenium hysterophorus? 11. Which vitamin is involved in red them?
(a) Lemon grass blood cell formation, neurological (a) The guard cells close
(b) Lawn grass function and DNA synthesis? (b) Stomatal pores open
(c) Horse grass (a) Vitamin B7 (b) Vitamin K (c) Stomatal pores shrink
(d) Carrot grass (c) Vitamin E (d) Vitamin B12 (d) Stomatal pores close
[SSC CHSL 2022] [SSC CPO 2024] [SSC CGL 2023]

CAREERWILL PUBLICATION 68
18. Pneumatophores are specialised 26. Which of the f ollowing 33. Charcot-Marie-Tooth disease
______ in hydrophytes. nutrients is available mainly in caused by duplication of the
(a) seeds (b) roots in apples? peripheral myelin protein-22
(c) fruits (d) flowers (a) Co (b) Na (PMP22) gene on which
[SSC CGL 2022] (c) K (d) S chromosome?
19. Which protein is found in grains? [SSC CHSL 2023] (a) chromosome 21
(a) Gluten (b) Gum protein 27. The green plants in a terrestrial (b) chromosome 15
(c) Arginine (d) Delta protein ecosystem capture about ____
(c) chromosome 8
[SSC CPO 2024] percent of the energy of sunlight
that falls on their leaves and (d) chromosome 17
20. Garlic is a good source of: [CGL TIER II 2024]
convert it into food energy.
(a) zinc and cobalt 34. Which condition, also known
(a) 20 (b) 10
(b) magnesium and aluminium as icterus, causes a yellowing
(c) 1 (d) 5 of your skin and the whites of
(c) iron and copper
[SSC CHSL 2023] your eyes?
(d) manganese and selenium
28. How is food stored in brown algae? (a) Ichthyosis (b) Jaundice
[SSC CPO 2024]
(a) In the form of glucose (c) Eczema (d) Pemphigus
21. Which of the following pairs of
plastids- thing stored is NOT (b) In the f orm of complex [SSC CGL 2024]

correct? carbohydrates that may be 35. Name a common electrolyte

in the form of laminarin or disorder that occurs when the
I. Amyloplasts - oils and fats amount of sodium in your blood
mannitol.
II. Aleuroplasts - carbohydrates becomes abnormally low.
(c) In the form of complex lipids
(a) Only I (a) Hyperkalemia
(d) In the form of oil droplets
(b) Both I and II (b) Hypokalemia
[SSC CHSL 2022]
(c) Neither I nor II (c) Hyponatremia
29. The leaves hav e a gr een
(d) Only II (d) Hypernatremia
pigment called ____________,
[SSC CPO 2022] [SSC CGL 2024]
which helps leaves to capture
22. Which of the following causes 36. Which is a serious contagious
the energy from the sunlight.
enlargement and extension bacterial infection that usually
(a) Cladophyll (b) Chlorophyll affects the mucous membranes
growth of cells?
(c) Xanthophyll (d) Cytoplasm of the nose and throat?
(a) Pressure potential
[SSC MTS 2023] (a) Meningococcal
(b) Osmotic pressure
30. The mode of nutrition in which (b) Diphtheria
(c) Imbibition organisms make f ood (c) Shigellosis
(d) Turgor pressure themselv es from simple (d) Chlamydia
[SSC CHSL 2024] substances is called ________. [SSC CGL 2024]
23. Identify a carbohydrate but does (a) heterotrophic nutrition 37. Match the points under Column
not fit into the definition. (b) autotrophic nutrition A with those under Column B.
(a) Maltose (b) Sucrose (c) saprotrophic nutrition Column A
(c) Fructose (d) Rhamnose (Disease)
(d) phototrophic nutrition
[SSC CHSL 2024] a. Vibrio
[SSC MTS 2023]
24. Which protein is found in grains? b. Salmonella
31. Plants require nutrients for
(a) Gluten (b) Gum protein their growth which can be c. Rotavirus
(c) Arginine (d) Delta protein supplied through _______ . d. Plasmodium
[SSC CPO 2024] (a) Soil and air only Column B
25. Which natural bioactive water (Organism Responsible)
(b) Soil, water and air
-soluble phenolic compound is i. Malaria
(c) Soil and water only
present in Fruits, vegetables ii. Diarrhoea
and grains with red, purple, (d) Soil only iii. Typhoid
blue or black hues? [SSC MTS 2023]
iv. Cholera
(a) Coumarins 32. The broad, green part of the leaf (a) i - b, ii - a, iii - c, iv - d
(b) Anthocyanins is called _____.
(b) i - d, ii - c, iii - b, iv - a
(c) Quercetin (a) lamina (b) petiole (c) i - a, ii - c, iii - b, iv - d
(d) Naringenin (c) veins (d) midrib (d) i - a, ii - b, iii - c, iv - d
[SSC MTS 2023] [SSC CGL 2024]
[SSC CHSL 2023]

CAREERWILL PUBLICATION 69
38. Among the choices listed, which 43. Which of the following is NOT 49. Which among the following is
one is NOT a form of cancer? the manifestation of Iron- a bacterial disease?
(a) Glaucoma (b) Carcinoma deficiency anemia (IDA) ? (a) Rabies (b) Leprosy
(c) Lymphoma (d) Sarcoma (a) Paleness of conjunctiva of eyes (c) Malaria (d) Ebola
[SSC CGL Tier II 2023] (b) Blindness [SSC CHSL 2023]

39. Which of the following options (c) Soft palate 50. How is tuberculosis spread in
is correct regarding sexually (d) General pallor humans?
transmitted disease (STD)? [SSC CPO 2023] (a) Inoculation into skin
Statement A: Sexually 44. Which of the following pairs of (b) Droplet infection
transmitted diseases (STDs) plant diseases – (c) Direct touching
are infections transmitted from microorganisms is correct? (d) Contact with soil
an infect ed per son to an I. Citrus canker – Virus [SSC CHSL 2022]
uninfected person through 51. A disease like COVID-19 is a
II. Rust of wheat – Fungi
sexual contact. kind of:
(a) Only II
Statement B: HIV, HPV and (a) Foodborne disease
Hepatitis B virus is responsible (b) Neither I nor II
(c) Only I (b) Protein Deficiency disease
for STD.
(d) Both I and II (c) Zoonotic disease
(a) Both Statements A and B
incorrect [SSC CPO 2022] (d) Waterborne disease
45. Which of the following is NOT [SSC MTS 2024]
(b) Only Statement B is correct
a mutation - based disease ? 52. Constipation could be a sign
(c) Both Statements A and B that the person is suffering
correct (a) Malaria
from a lack of________.
(d) Only Statement A is correct (b) Down syndrome
(a) Calcium (b) Dietary Fibre
[SSC CGL 2023] (c) Sickle cell anaemia
(c) Vitamin (d) Protein
40. _______ is a disorder resulting (d) Phenylketonuria
[SSC MTS 2024]
in abnor mal electrical [SSC CHSL 2024]
53. Which among the following
discharge from the brain cells 46. Which of the following is a food organs in the human body, is
causing seizures, - borne disease caused by the most affected by Pneumonia
(a) Prostatitis consumption of contaminated disease?
(b) Hypoglycaemia food or beverages ?
(a) Kidneys
(c) Epilepsy (a) Tuberculosis
(b) Urinary bladder
(d) Rheumatoid arthritis (b) Malaria
(c) Heart
[SSC CGL 2022] (c) Cholera
(d) Lungs
41. Which of the following foods (d) Chicken pox [SSC MTS 2023]
generally increase blood pressure? [SSC CHSL 2024]
54. What is added to toothpaste to
(a) Food high in protein 47. Severe undernutrition due to reduce tooth decay?
(b) Food high in salt, sugar and the deficiency of food and (a) Iron (b) Cobalt
saturated or trans fats energy is termed as _________.
(c) Fluoride (d) Molybdenum
(c) Food with low salt and low sugar (a) kwashiorkor [SSC MTS 2023]

(d) Food high in fibre (b) wasting 55. Which of the following is 'NOT'
[SSC CPO 2024] (c) marasmus an example of communicable
42. Identify the r eason for (d) dementia diseases?
formation of dental plaque. [SSC CHSL Tier II 2024] (a) Chicken Pox
(a) When acids stick to the 48. Which is an inherited blood (b) Common cold
teeth disorder t hat af fects the (c) Diabetes
(b) When bacteria acting on hemoglobin gene and results (d) Tuberculosis
sugars produce acids in ineffective erythropoiesis ?
[SSC MTS 2023]
(a) Somatostatinoma
(c) Masses of bacterial cells 56. Identify an organism t hat
together with food particles (b) Thalassemia
exhibits metagenesis.
stick to the teeth (c) Venous Thromboembolism
(a) Obelia (b) Spongilla
(d) Saliva sticks to the pulp (d) Polycythemia vera
(c) Sycon (d) Euspongia
[SSC CPO 2024] [SSC CHSL 2023]
[SSC CGL 2023]

CAREERWILL PUBLICATION 70
57. Which of the following is NOT (a) Spore formation (a) d (b) b
a component of a flower? (b) Vegetative propagation (c) c (d) a
(a) Androecium (c) Budding [SSC CGL 2024]

(b) Corolla (d) Pollination 70. Which of the following is an

(c) Spines [SSC CHSL 2023] example of prokaryotic cells?
(d) Calyx 64. The stage of the embryo in (a) Plasmodium
[SSC CGL 2024]
which all the body parts can be (b) Leishmania
identified is called _________ . (c) Yeast
58. Which types of gametes are
(a) Uterus (b) Ovulation (d) Bacteria
found in Spirogyra?
(c) Foetus (d) Zygote [SSC CGL 2024]
(a) Isogamous and flagellated
[SSC MTS 2023]
(b) Heterogamous and non- 71. In a plant, ______ is present in
65. The transformation of the larva the middle lamella, primary
flagellated into an adult through drastic cell and secondary walls and
(c) Heterogamous and flagellated change is called ___________. accumulates in the initial
(d) Isogamous and non-flagellated (a) budding stages of development during
[SSC CGL 2024] (b) shifting cell expansion.
59. The phenomenon whereby the (c) bulging (a) chitin (b) gelatin
female gamete undergoes (d) metamorphosis (c) alginate (d) pectin
development to form new [SSC MTS 2023] [SSC CGL 2023]
organisms without fertilisation in 66. The innermost part of a flower 72. Select the correct statement.
some organisms like honey bees, is called the _______. (a) Mitochondria and nucleus
some lizards and birds is called:
(a) stamens (b) pistil are found in bacteria.
(a) Budding (c) petals (d) sepals (b) Ribosomes, mitochondria
(b) Fragmentation [SSC MTS 2023] and lysosomes are found in
(c) Apomixis 67. In which year was the fluid animal cells.
(d) Parthenogenesis mosaic model proposed by (c) Chloroplast, ribosomes and
[SSC CPO 2020] Singer and Nicolson? nucleus are pr esent in
60. Which of the following animals The model commonly fungal cells.
can change their gender during represented cell membrane (d) Mitochondria and nucleus
their lifespan structure and dynamics. are absent in plant cells.
(a) Humans (b) Ascaris (a) 1981 (b) 1960 [SSC CGL 2023]

(c) nereis (d) Snail (c) 1993 (d) 1972 73. Which cells, also called
[CGL TIER II 2024] neurilemma cells, are the main
[SSC CHSL 2024]
68. Which of the following pairs is glial cells in the PNS and play
61. In a dihybrid cross between two an essential role in the survival
INCORRECT regarding the grade
heterozygous fruit flies with of organisation and its example? and functions of neurons?
brown bodies and red eyes
(a) Cellular grade organisation (a) Bipolar cells
(BbEe × BbEe), what will be the
- Sycon (b) Ganglion cells
probability of getting BBEE
genotype? (b) Protoplasmic gr ade (c) Schwann cells
organisation -Paramecium (d) Photoreceptor cells
(a) 1/8 (b) 1/4
(c) Cell-tissue gr ade [SSC CGL 2023]
(c) 1/16 (d) 1/2 organisation - Jellyfish
[SSC CHSL 2024]
74. In Golgi appar atus, the
(d) Tissue-or gan gr ade maturing face is:
62. Which of the following is a part organisation - Euplectella
of apical meristem found in (a) spherical (b) convex
[SSC CGL 2024]
roots. (c) bi-concave (d) concave
69. Which of the following Illustrations
[SSC CGL 2022]
(a) Differentiating vascular tissue shows the mitochondr-ion’s
structural details? 75. What is the outermost layer
(b) Axillary bud
found in the cell envelope of the
(c) Protoderm bacterial cell called?
(d) Leaf primordium (a) (b) (a) Glycocalyx
[SSC CHSL 2024]
(b) Cell membrane
63. Which of the following is not an (c) Plasma membrane
asexual form of reproduction in (c) (d) (d) Cytoplasm
plants?
[SSC CGL 2022]

CAREERWILL PUBLICATION 71
76. Identify an option that does NOT 84. The main function of centriole is: 88. Who was the first person to
represent prokaryotic cells. (a) to maintain mineral conduct a systematic study of
(a) Mycoplasma composition in bacterial cell chromosomes during division
(b) Blue-green algae and called this process mitosis?
(b) to help plant cell for
(c) Sperm (a) Thomas Hunt Morgan
multiplication
(d) P l e u r o p n e u m o n i a - l i k e (b) Antonie van Leeuwenhoek
organism (c) to help cell division in
(c) Walther Flemming
[SSC CGL 2022]
animal cell
(d) Friedrich Miescher
77. An undifferentiated layer, (d) to maintain rigidity in plant
[SSC CHSL 2024]
______is present in between the cell
89. Which part of a cell converts
ectoderm and the endoderm. [SSC CPO 2023]
nutrients into energy?
(a) Coeliea (b) Acoelomea 85. A part of the cell other than the (a) Cell membrane
(c) Ectinoglea (d) Mesoglea nucleus which has DNA and
[SSC CGL 2022]
(b) Lysosomes
ribosomes and can thus make
78. What are the thin filamentous (c) Mitochondria
its own proteins is known as:
extensions that the motile (d) Chromosome
bacterial cells have from their (a) Golgi apparatus
[SSC CHSL 2023]
cell wall called? (b) endoplasmic reticulum 90. Which cell analysis technique
(a) Fimbriae (b) Flagella (c) ribosomes is used to rapidly analyse
(c) Lamellae (d) Pili (d) mitochondria single cells or particles as they
[SSC CPO 2024] [SSC CHSL Tier II 2024] flow through single or multiple
79. Which is an integral lasers while suspended in a
86. Which of the following enzymes
membrane protein that forms buffered salt-based solution?
are essential of DNA replication
the tetramer and facilitates the (a) Mass spectroscopy
diffusion of water and some in an animal cell ?
(b) Flow cytometry
small, unmodified solutes (a) Reverse transcriptase, RNA
across cellular membranes? polymerase, Ligase (c) Electrochemical analysis
(a) Immunoglobulins (d) Mult iple displacement
(b) Reverse transcriptase, DNA
(b) Mucins amplification
polymerase, DNA primase
[SSC CHSL 2023]
(c) Transferrin (c) Topoisomerase, DNA ligase, 91. In cell biology, what is a large
(d) Aquaporins DNA polymerase, DNA double-membraned organelle that
[SSC CPO 2024]
primase is sometimes referred to as the
80. What is the fourth step in
(d) Reverse transcriptase, DNA ‘central unit’ of the cell because
mit osis where non-
polymerase, Ligase it contains the chromosomes
kinetochore spindle fibres
lengthen and elongate the cell? [SSC CHSL 2024] that bear genetic material?
(a) Telophase (b) Metaphase 87. What do you mean by (a) Peroxisome
(c) Anaphase (d) Prophase semiconser vative DNA (b) Nucleus
[SSC CPO 2024] replication ? (c) Mitochondrion
81. Identify the organelle present (a) DNA is dependent on RNA for (d) Lysosome
in plant cells that is not there the synthesis of proteins [SSC CHSL 2022]
in an animal cell. 92. Choose the correct sequence
(b) RNA is dependent on DNA for
(a) Nucleus (b) Plastids for central dogma.
the synthesis of proteins
(c) Neuron (d) Cytoplasm (a) Protein translation, DNA
[SSC CPO 2024]
(c) Aft er the completion of
Replication, m-RNA
82. What is the percentage of replication, each DNA
transcription
proteins in the cell membrane? molecule would have one
(b) DNA Replication, m-RNA
(a) 80 - 100% (b) 20 - 40% parent al and one newly
transcription, Prot ein
(c) 60 - 80% (d) 40 - 60% synthesised strand.
translation
[SSC CPO 2023] (d) After the completion of (c) m-RNA transcription, Protein
83. What do you call the fluid replication, each DNA translation, DNA Replication
matrix filling in the cell ? molecule would have two (d) m-RNA transcription, DNA
(a) Golgi bodies (b) Ribosome parental and two newly Replication, Protein
(c) Cytoplasm (d) Plasmid synthesised strand. translation
[SSC CPO 2023] [SSC CHSL 2024] [SSC CHSL 2022]

CAREERWILL PUBLICATION 72
93. Which biological stain is used 99. In plant cell, _ _____ are 106.How many chambers are there
in histology and cytology to primarily organelles in which in the heart of fishes ?
colour all cell nuclei red? materials such as starch, oils (a) 1 (b) 2
(a) Methyl orange and protein granules are (c) 4 (d) 3
(b) Safranin stored. [SSC CGL 2024]

(c) Phenolphthalein (a) chromoplasts 107.Which of the following is

(b) mitochondria essential to form haemoglobin
(d) Cresol red in blood?
SSC CHSL 2022 (c) leucoplasts
(a) Fats (b) Iron
94. Identify the structure that (d) vacuoles
(c) Calcium (d) Protein
controls the size of the pupil. [SSC MTS 2022]
[SSC CGL Tier II 2023]
(a) Vitreous humour 100.What are the projections of 108.Lymph is a light clear fluid
(b) Iris varying lengths protruding out made up of white blood cells
(c) Ciliary muscles of an amoeba’s body, which that attack harmful ______ in
can appear and disappear, the blood.
(d) Cornea
known as? (a) protozoa (b) fungi
[SSC CPO 2024]
(a) Contractile vacuole (c) viruses (d) bacteria
95. Which type of muscles do the
uterus, iris of the eye, and (b) Paramecium [SSC CGL 2021]

bronchi contain? (c) Pseudo vacuole 109.What is the pH of human blood?

(a) Smooth muscles (d) Pseudopodia (a) 6.5 (b) 5.8
(b) Striated muscles [SSC MTS 2022] (c) 10 (d) 7.4
[SSC CHSL 2023]
(c) Skeletal muscles 101.Which of the following are
situated in the nucleus of a 110.Muscles are of three types.
(d) Cardiac muscles Which of the following is NOT
cell?
[Matriculation Level 2024] one of them?
96. Which process is sometimes (a) Chromosome and genes
(a) Sesamoids (b) Smooth
called "reduction division" (b) Cytoplasm and chromosome (c) Cardiac (d) Skeletal
because it reduces the number (c) Nucleolus and cytoplasm [SSC CHSL 2023]
of chromosomes to half the (d) Prot oplasm and 111.Which of the following is a large
normal number to form sperm chromosome bean - shaped lymphoid organ
and eggs? [SSC MTS 2022] in the human body?
(a) Amitosis 102.Clove is an _____ indicator. (a) Thymus
(b) Meiosis (a) Chemical (b) Olfactory (b) Spleen
(c) Cytokinesis (c) Universal (d) Gustatory (c) Lymph node
(d) Karyokinesis [SSC CGL 2022] (d) Tonsil
[SSC MTS 2023] [SSC CHSL 2021]
103.What is the shape of the
97. Which cell found in the bone eyeball? 112.Which of the f ollowing
marrow acts as a repair system statements about blood
(a) Oval (b) Spherical pressure is correct?
for the body?
(c) Cylindrical (d) Circular (a) The normal systolic
(a) Bone Cells
[SSC CPO 2024] pressure is about 80 mm of
(b) Fat Cells
104.Identify the structure that Hg and diastolic pressure is
(c) Muscle cells controls the size of the pupil. 120 mm of Hg.
(d) Stem cells (a) Vitreous humour (b) The normal systolic
[SSC MTS 2023] pressure is about 72 mm of
(b) Iris
98. Which of the following cell Hg and diastolic pressure is
organelles functions both as a (c) Ciliary muscles 35 mm of Hg.
passageway for intracellular (d) Cornea (c) The normal systolic
transport and as a [SSC CPO 2024] pressure is about 160 mm of
manufacturing surface? 105.What is the main sense organ Hg and diastolic pressure is
(a) Golgi Apparatus that virtual reality displays are 80 mm of Hg.
aiming for (d) The normal systolic
(b) Lysosome
(a) Taste (b) Smell pressure is about 120 mm of
(c) Mitochondria Hg and diastolic pressure is
(d) Endoplasmic Reticulum (c) Vision (d) Touch 80 mm of Hg.
[SSC MTS 2022] [SSC CHSL 2024] [SSC CHSL 2021]

CAREERWILL PUBLICATION 73
113.Swollen bluish veins resulting 119.Which of the following parts of 125.Which of the following is correct
from the valves that do not close the body/glands maintains the regarding the respiration?
properly are called ______. body temperature? I. Regular traditional breathing
(a) systemic veins exercise (pranayama) can
(a) Pituitary
increase the capacity of
(b) varicose veins (b) Adrenal lungs to take in more air.
(c) deep veins (c) Thyroid II. During inhalation, ribs move
(d) superficial veins (d) Hypothalamus up and out wards and
[SSC CHSL 2021] diaphragm moves down.
[SSC CHSL 2021]
114.______ are the vessels which (a) Both I and II
120.What is a leaf-shaped flap of
carry blood away from the heart (b) Only II
cartilage located behind the
to various organs of the body. (c) Neither I nor II
tongue, at the top of the larynx
(a) Veins (b) Tracheas (d) Only I
or voice box called? [SSC CHSL 2023]
(c) Arteries (d) Plasma
(a) Gallbladder (b) Ileum 126.What is the percentage of
[SSC MTS 2023]
(c) Jejunum (d) Epiglottis carbon dioxide in the air
115.The blood platelets are also exhaled by human lungs ?
[SSC CHSL 2021]
known as ________. (a) 3.2 % (b) 5.9 %
121.Which gland gets enlarged in
(a) thrombin (c) 2.3 % (d) 4.4 %
the goitre due to which there
(b) thrombocytes [SSC CHSL 2023]
is a swelling in the front part
(c) erythrocytes 127.In boys, the growing ‘larynx’ is
of the throat?
(d) leucocytes visible as a distinct bulge at
(a) Adrenal gland the front of the throat called
[SSC MTS 2023]
(b) Thyroid gland ______.
116.Filtration of waste products in (c) Pineal gland (a) Adrenaline
humans happens in the (b) Kanthamani (Adam’s apple)
(d) Pituitary gland
kidneys. There is a large (c) Corn
[SSC MTS 2023]
number of filtration units (d) Gullet
present inside the kidneys to 122.Which of the following is the
[SSC MTS 2023]
help them them in doing this largest gland in the human
128.What is the network of air tubes
job. These filtration units are body?
for gas exchange in insects?
called: (a) Pancreas (a) Gills (b) Diaphragm
(a) Bowman's capsules (b) Pineal (c) Tracheae (d) Spiracles
(b) nephrons (c) Liver [SSC MTS 2021]
(c) capillaries (d) Hypothalamus 129.Digestion of f ood is an
(d) alveoli [SSC MTS 2022] important function of the
[SSC CGL 2024] 123.Proboscis gland for excretion is animal body. In animals like
117.Which is a specialised lions, cows, humans, etc., the
present in the phylum:
process involves use of various
excretory cell found in (a) Arthropoda organs starting from the mouth
Platyhelminthes that acts like and ending with the anus. The
(b) Porifera
a kidney, remov ing waste longest part of this canal is
material through filtration? (c) Mollusca
known as the ________.
(a) Fat cell (b) Flame cell (d) Hemichordata
(a) stomach
(c) Stem cell (d) Sponge cell [SSC MTS 2021] (b) large intestine
[SSC CGL Tier II 2023] 124.Breakdown of pyruvate into (c) oesophagus
118.Identify a muscle responsible lactic acid and energy in lack (d) small intestine
for the exit of waste material of Oxygen takes place in Which [SSC CGL 2024]

from the body. of the following ? 130.Identify the function of lipase

(a) Bacteria in the process of digestion.
(a) Rectus
(a) Breaking down roughage
(b) Pectoralis (b) Mitochondria
(b) Breaking down emulsified fats
(c) Sphincter (c) Yeast
(c) Secreting intestinal fluids
(d) Gastrocnemius (d) Human muscle cells (d) Digesting proteins
[SSC CPO 2024] [SSC CHSL 2023] [SSC CGL 2023]

CAREERWILL PUBLICATION 74
131.Which of the following is NOT 138.Where are villi present in the (a) Schizophrenia
a function of calcium in our body? human alimentary canal? (b) Alzheimer’s Disease
(a) It plays an important role in (a) Pancreas (c) Amnesia
blood clotting. (b) Oesophagus (d) Concussion
(b) t helps the digestive system. (c) Stomach [SSC CHSL 2019]
(c) It is associated with healthy
(d) Small intestine 145.The vertebrae are a part of
bones and teeth
[SSC MTS 2022]
(d) It helps muscles to contract. which of the following body
[SSC CPO 2022]
139.In human beings, the small systems in humans
intestine is coiled and is about (a) Kidney (b) Lungs
132.______, a fluid secreted by new
mothers during the initial days ______ metres long.
(c) Heart (d) Spinal cord
of lactation, contains nutrients (a) 1 to 1.5 (b) 3 to 3.5
[SSC CGL 2021]
that boost a baby's immune (c) 2 to 2.5 (d) 7 to 7.5 146.The cells having well-organized
system and helps fight infection. [SSC MTS 2022]
nuclei with a nuclear membrane
(a) Sebum (b) Synovia 140.How do the muscle cells help are designated as__________.
(c) Colostrum (d) Cerumen in movement ? (a) Cheek cells
[SSC CGL 2022] (a) The thickness of the cell (b) prokaryotic cells
133.Which of the following is a layer helps in movement.
medium-sized globular protein (c) eukaryotic cells
(b) The lining of the vessels
that acts as a pancreatic serine (d) autokaryotic cells
inside help in movement.
protease found in the digestive [SSC MTS 2023]
system of many vertebrates (c) The blood flow of the cells
147.Which component of the cell
helps in movement.
(a) Trypsin (b) Amylase contains the heredit ary
(c) Lipase (d) Pepsin (d) The contraction and material of the cell, the DNA?
relaxation of these cells
[SSC CHSL 2024] (a) Cell Wall
result in movement.
134.In humans, the digestion of (b) Nucleus
[SSC CHSL 2024]
carbohydrates like starch, begins
141.Which part of the human brain (c) Cell Membrane
in which of the following parts?
(a) Rectum is responsible for walking in a (d) Cytoplasm
straight line? [SSC MTS 2023]
(b) Small Intestine
(a) Medulla (b) Cerebrum 148.Cells were first observed in
(c) Oesophagus
(c) Pons (d) Cerebellum cork by __________ in 1665.
(d) Buccal cavity
[SSC CHSL 2023] (a) Robert Hooke
[SSC CHSL 2023]
135.In r uminants like catt le, 142.The sensation of feeling full is (b) Anton van Leeuwenhoek
bacteria present in ______helps because of a centre associated (c) Theophrastus
in digestion of cellulose. with hunger, which is in a (d) Edward Jenner
(a) rumen separate part of the ______ . [SSC MTS 2023]
(b) oesophagus (a) Pituitary gland 149.Which component of the cell
(c) small intestine (b) Midbrain organelles principally performs
(d) large intestine (c) Forebrain the function of packaging
136.To get relief from constipation, (d) Hindbrain materials, to be delivered either
which of the following is prescribed [SSC CHSL 2023]
to the intra-cellular targets or
to be eaten in large amounts? secreted outside the cell?
143.In which part of the human body
(a) Protein (b) Meat will you find the 'superior rectus'? (a) Chloroplast
(c) Fish (d) Fibre (a) Ear (b) Eye (b) Mitochondria
[SSC MTS 2024] (c) Nose (d) Tongue (c) Golgi Apparatus
137.Liver gland secretes that are [SSC CHSL 2021] (d) Chromosomes
stored in a sac called the 144.Which one of the following is a [SSC MTS 2023]
gallbladder. 150.Hubbardia heptaneuron, which
degenerative disorder of the
(a) estrogen brain and one of several has become endangered, is a
(b) hydrochloric acid conditions that cause species of which of the following?
(c) mucous dementia, a progressive decline (a) Grass (b) Bamboo
(d) bile juice of mental functions resulting in (c) Tiger (d) Crane
[SSC MTS 2023] memory loss and confusion? [SSC CGL 2024]

CAREERWILL PUBLICATION 75
151.Taxus wallichiana Zucc 156.Sporophyte stage is dominant 160.Which of the f ollowing
(Himalayan yew) is a medicinal in which plant group? organisms can initiate
plant found in which of the (a) Bryophytes ecological succession even in
following states? (b) Vascular plants bare rocks?
(a) Goa (c) Algae (a) Orchids
(b) Jharkhand (d) Pteridophytes (b) Aspergillums
(c) Himachal Pradesh [SSC CGL 2023] (c) Lily
(d) Bihar 157.Match column A with column B. (d) Lichens
[SSC CGL 2024] Column A [SSC CPO 2024]
152.What is the reason for the (Type of algae) 161.The structure that produces
similar size of the vascular a. Blue-green algae and holds sperm cells in
bundle in monocot leaves ? bryophytes (non - vascular
b. Red algae
(a) Cubical venation plants) and ferns is called :
c. Green algae
(b) Radial venation (a) megasporangia
d. Brown algae
(c) Rectangular venation (b) antheridium
Column B
(d) Parallel venation (c) archegonium
(Proper Name)
[SSC CGL 2024] (d) protonema
i. Sargassum
153.The growth form of a plant, [SSC CPO 2023]
ii. Chlamydomonas 162.Which of the following is a
comprising its size, shape and
orientation is known as : iii. Rhodophyta diverse group of aquatic
(a) habit iv. Cyanobacteria organisms capable of
(a) a-i, b-ii, c-iii, d-iv photosynthesising?
(b) environment
(b) a-i, b-iii, c-ii, d-iv (a) Yeast (b) Protozoa
(c) habitat
(c) a-iv, b-iii, c-ii, d-i (c) Fungi (d) Algae
(d) growth pattern
(d) a-iii, b-iv, c-ii, d-i [SSC CPO 2022]
[SSC CGL 2024]
[SSC CGL 2023] 163.The loss of water in the form of
154.Which marine carotenoid is
158.Identify the correct statement water droplets from leaves of
abundant in brown seaweed,
about green algae. plants is called _____.
macroalgae and diatoms ?
(a) Green algae usually have a (a) Translocation
(a) Fucoxanthin
soft cell wall made up of an (b) Plasmolysis
(b) Astaxanthin
inner layer of pectose. (c) Pressure gradient
(c) Neoxanthin
(b) Green algae usually have a (d) Guttation
(d) -cryptoxanthin rigid cell wall made of an [SSC CHSL 2024]
inner layer of protein and an
[SSC CGL 2024] 164.Which of the following is a
outer layer of fibre.
155.Select the incorrect statement perennial herbaceous plant in
about Gymnosperms. (c) Green algae usually have a the nightshade family
rigid cell wall made of an Solanaceae that is used in
(a) Gymnosperms are found as
inner layer of cellulose and alternative medicine as an aid
woody shrubs, trees or
an outer layer of pectose. in treating arthritis pain, colds
lianas and include no true
aquatics and few epiphytes. (d) Green algae usually have a or hay fever?
rigid cell wall made of an (a) Arachis hypogaea
(b) Gymnosperms are seedless inner layer of fat and an
flowering plants. outer layer of protein. (b) Cynodon dactylon
(c) Gymnosperms are typically [SSC CGL 2022] (c) Cicer arietinum
slow in terms of 159.In which of the following groups, (d) Atropa belladonna
reproduction; up to a year are all plants monoecious ? [SSC CHSL 2023]
may pass bet ween 165.Which of the following are
(a) Maize, Papaya, Poplar and Rose
pollination and fertilization cryptogram ?
and seed maturation may (b) Papaya, Poplar, Rose and Fig
(c) Maize, Cucumber, Fig and (a) Gymnosperm
require 3 years.
Melon (b) Dicots
(d) Gymnosperms exhibit cones
or storbili and naked seeds, (d) Cucumber, Papaya, Poplar (c) Angiosperm
but not flowers. and Rose (d) Pteridophyta
[SSC CGL 2022] [SSC CHSL 2023]
[SSC CGL 2023]

CAREERWILL PUBLICATION 76
166.Which is a perennial carnivorous 170.The blue green alga Anabaena 177.Which gr oup of Kingdom
plant of the sundew family that lives in the leaves of Azolla, a Animalia has unsegmented,
attracts prey and usually traps freshwater fern, forming which bilaterally symmetrical, soft
of the following relationships ? bodies, with a triploblastic
insects and then breaks them
construction (comprising three
down with digestive enzymes? (a) Autotrophic(b) Symbiotic layers of cells) and a lacking
(a) Phytoplankton (c) Parasitic (d) Saprophytic coelom, skeleton and anus?
(b) Bladderwort [SSC MTS 2023] (a) Cnidaria
(c) Venus flytrap 171.Plants with green and tender (b) Ctenophora
(d) Seaweed stems are called _______. (c) Platyhelminthes
[SSC CHSL 2022] (a) shrubs (b) trees (d) Porifera
(c) canopy (d) herbs [SSC CGL 2023]
167.Which phylum of the plant
kingdom consists of vascular [SSC MTS 2023] 178.Identify the animal that does
NOT have bilateral symmetry.
plants, leaves (known as 172.Which among the following is
an example of Angiosperm in (a) Annelida (b) Molluscs
fronds), roots and sometimes
true stems and entire trunks Plant Kingdom? (c) Arthropoda (d) Cnidarian
[SSC CGL 2023]
in tree ferns? (a) Pinus (b) Chara
179.Identify an example of
(a) Angiosperm (c) Tomato (d) Funaria decomposers that are found in
(b) Pteridophyta [SSC MTS 2023] the bottom of a pond.
(c) Bryophyta 173.Which organisms are classified (a) Zooplankton
(d) Gymnosperm as Aves ? (b) Jellyfishes
[SSC CHSL 2022] (a) Fishes (b) Frogs (c) Flagellates
168.Match the columns. (d) Phytoplankton
(c) Snakes (d) Birds
[SSC CGL 2022]
Column A (Plant Group) [SSC CGL 2024]
180.The body of the ______ is
174.Which species is known as circular in cross-sect ion,
i. Bryophyta black lipped pearl oyster found hence the name roundworms.
ii. Pteridophyta in the Indo - Pacific, within They may be free living,
tropical coral reefs? aquatic and terr estrial or
iii. Gymnosperms
(a) Aplysia dactylomela par asitic in plants and
iv. Angiosperms animals.
(b) Dentalium neohexagonum
Column B (Example) (a) Platyhelminthes
(c) Chaetopleura apiculata
a. Rose (b) Ctenophores
(d) Pinctada margaritifera (c) Mollusca
b. Pine
[SSC CGL 2024]
c. Mosses (d) Aschelminthes
175.Which of the following options [SSC CGL 2022]
d. Selaginella is associated with the class of 181.Which of the f ollowing
(a) i-c, ii-a, iii-b, iv-d cold - blooded animals ? statements is correct with
(b) i-c, ii-d, iii-b, iv-a (a) Chameleon(b) Pavo respect to chordates?
(c) i-c, ii-d, iii-a, iv-b (c) Macropus (d) Psittacula (a) Notochord is present
(d) i-d, ii-c, iii-b, iv-a [SSC CGL 2024] (b) Heart is dorsal or laterally
176.Which of the f ollowing placed or absent
[SSC MTS 2024]
characteristics is NOT of Aves? (c) A post anal tail is absent
169.Which of the following groups
of plants are categorised as (a) They have a four- (d) Double ventral solid nerve
cord
cryptogams? chambered heart.
[SSC CGL 2022]
(a) Gymnosperms and (b) They give birth to live young 182.The bodies of the animals of
Angiosperms ones with some exceptions phylum Platyhelminthes show
(b) Pter idophyta and that lay eggs. _____grade organisation.
Angiosperms (c) These are warm-blooded (a) tissue-organ
(c) Thallophyta and animals. (b) protoplasmic
Gymnosperms (d) They breathe through the (c) cellular
(d) Bryophytes and Thallophyta lungs (d) cell-tissue
[SSC CGL 2024] [SSC CHSL 2022]
[SSC MTS 2024]

CAREERWILL PUBLICATION 77
183.‘Hypnea Indica and Hypnea (a) They have radial or bilateral 194.The body of animals of the
bullata’ are types of : body symmetry. phylum Protozoa, such as
(a) green seaweeds (b) They have a pair of solid Paramecium, Amoeba,
nerv e cords, situated Euglena, shows ________ grade
(b) black seaweeds
vent rally and bearing organisation.
(c) yellow seaweeds
segmentally arranged (a) tissue-organ
(d) red seaweeds
ganglia. (b) protoplasmic
SSC CGL 19/04/2022 (EVENING)
(c) They have an open circulatory (c) cell-tissue
184.Identify the largest phylum in
the animal kingdom. system as there is no (d) cellular
organisation in the [SSC CHSL 2022]
(a) Mollusca
distribution. 195.In the case of reptiles, their
(b) Annelida heart is not properly divided
(d) They possess a backbone
(c) Arthropoda and an internal skeleton. into four chambers i.e., it
(d) Platyhelmenthis [SSC CHSL 2024] consists of two auricles and an
[SSC CPO 2024] 191.Which of the following incompletely divided ventricle.
185.The body of the phylum ....... is statements most accurately Which of the following is an
unsegmented and dorsoventrally describes the Cyclostomata example of a reptile having a
flattened. four-chambered heart?
group?
(a) Coelenterata (a) Snake (b) Turtles
(a) Their skin is covered with
(b) Arthropoda scales/plates and their (c) Crocodile (d) Lizard
[SSC MTS 2024]
(c) Platyhelminthes hear ts hav e only two
chambers. 196.Balanoglossus belongs to which
(d) Mollusca of the following phylums of the
[SSC CPO 2024]
(b) They are ectothermic
animal wkingdom?
animals having mucus
186.Identify the organism that (a) Hemichordata
glands in the skin, and a
shows bioluminescence. (b) Arthropoda
three-chambered heart.
(a) Fasciola (b) Ctenoplana (c) Echinodermata
(c) They are warm-blooded,
(c) Liver fluke (d) Tapeworm oviparous, bipedal, (d) Mollusca
[SSC CPO 2024]
feat hered, winged and [SSC MTS 2023]
187.Identify the third germinal layer toothless vertebrates. 197.Which among the following is
found in triploblastic animals. (d) They are characterised by an example of Phylum
(a) Coelom (b) Endoderm having an elongated eel-like Mammalia of Animal Kingdom?
(c) Ectoderm (d) Mesoderm body, circular mouth, slimy (a) Crocodile (b) Hen
[SSC CPO 2023] skin and are scaleless. (c) Rat (d) Pigeon
188.Which of the following is a [SSC CHSL 2024] [SSC MTS 2023]
roundworm? 192.Which of the following comes 198.Which of the following is NOT
(a) Ascaris (b) Planaria under the platyhelminthes a polar animal?
(c) Liver fluke (d) Taenia classification under the animalia? (a) Ringed seals
[SSC CPO 2023] (a) Sycon (b) Leech (b) Musk oxen
189.Which group of animals has a (c) Wuchereria (d) Tapeworm (c) Lemur
segmented spinal column [SSC CHSL 2023] (d) Walrus
together with a few primitive 193.Which of the following is a [SSC MTS 2022]
forms in which the backbone group of primitive vertebrates 199.Which of the f ollowing
is represented by a notochord having a large jawless sucking statements is/are correct?
(a) Vertebrata mouth, no limbs or paired fins I. Amoeba ingests its food with
(b) Echinodermata and a completely cartilaginous the help of pseudopodia.
skeleton with a persistent II. Amoeba constantly changes
(c) Mollusca
notochord? its shape and position.
(d) Arthropoda
(a) Cyclostomata (a) Only II
[SSC CHSL 2024]
(b) Aschelminthes (b) Neither I nor II
190.Identify the I NCORRECT
stat ement regarding (c) Hemichordata (c) Only I
invertebrates from the options (d) Arthropoda (d) Both I and II
given below. [SSC CHSL 2022] [SSC MTS 2022]

CAREERWILL PUBLICATION 78
200.Which of the following categories 207.Which aquatic microorganisms b. Nucleotide polymerisation
does Gonyaulax belong to? eat phytoplankton and then c. RNA primer synthesis
(a) Euglenoids become food for fish, crustaceans
d. Opens up the DNA double
(b) Chrysophytes and other large species?
helix
(c) Protozoans (a) Virioplankton
(a) i-a, ii-b, iii-c, iv-d
(d) Dinoflagellates (b) Zooplankton
(b) i-b, ii-a, iii-d, iv-c
[SSC CGL 2024] (c) Bacterioplankton
201.The organisms that do not have (d) Zooxanthellae (c) i-d, ii-c, iii-b, iv-a
a defined nucleus or organelles [SSC CPO 2022] (d) i-b, ii-c, iii-a, iv-d
are classified into ..... Kingdom. 208.Which of the following is a kind [SSC CGL 2023]

(a) Fungi (b) Protista of Xanthan? 213.Which of the following can

(c) Monera (d) Plantae (a) Seed gum degrade detritus into simpler
[SSC CGL 2024] (b) Seaweed gum inorganic substances?
202.Which of the following options (c) Microbial gum (a) Algae
indicates the size of PPLO (b) Phytoplankton
(d) Exudate gum
(Pleuro Pneumonia Like
Organisms)?
[SSC CHSL 2023] (c) Fungal enzymes
209.What kind of adaptation is seen (d) Lichens
(a) About 30 ¼ μm in bacteria when they form [SSC CGL Tier II 2023]
(b) About 20 ¼ μm various kinds of thick- walled
214.Identify the function of the
(c) About 0.1 ¼ μm spores.
enzyme trypsin.
(a) Migrate (b) Conform
(d) About 10 ¼ μm (a) Digesting proteins
(c) Suspend (d) Regulate
[SSC CGL 2024] (b) Breaking down carbohydrates
[SSC CHSL 2022]
203.Identify a spiral-shaped bacteria (c) Digesting roughage and fats
210.Which of the f ollowing
(a) Bacillus (b) Spirillum
organisms is used in bread and (d) Emulsifying insulin
(c) Coccus (d) Vibrio alcohol industries? [SSC CGL 2022]
[SSC CGL 2024]
(a) Clostridium 215.Identify the statement that is
204.Which bacteria have a thick
(b) Nitrobacter NOT true about ATP.
cell wall with several layers of
peptidoglycan and teichoic acid? (c) Yeast (a) nerve impulse propagation
(a) Staphylococcus aureus (d) Penicillium (b) Secretion of enzymes
[SSC MTS 2024]
(b) Pseudomonas aeruginosa (c) Contraction of muscles
211.Which of the following is
(c) Salmonella enterica (d) Protein synthesis
considered unicellular green
(d) Escherichia coli algae? [SSC CGL 2022]
[SSC CPO 2024] 216.Amylase enzymes can be found
(a) Oedogonium
205.Which of the following can in ______.
degrade detritus into simpler (b) Cladophora
(a) the stomach
inorganic substances? (c) Chlamydomonas
(d) Chlorophyta (b) the liver
(a) Lichens
(c) the gall bladder
(b) Algae [SSC MTS 2024]
(c) Fungal enzymes (d) saliva
212.Match the columns.
[SSC CPO 2022]
(d) Phytoplankton Column-A
[SSC CPO 2023]
217.Which enzyme is responsible
(Enzyme/Protein)
206.Which of the following pairs of for the oxidation reaction that
i. Helicase occurs in some foods, mostly
microorganism - type is correct?
ii. RNA primase fruits and vegetables, that
I. Paramecium - Fungi
iii. DNA polymerase turns the food brown?
II. Penicillium - Protozoa
iv. DNA ligase (a) Polyphenol oxidase
(a) Only II
Column-B (Role in DNA (b) Bromelain
(b) Both I and II
replication)
(c) Neither I nor II (c) Serrapeptase
a. Joins the 3' end o the new
(d) Only I DNA fragment to the 5' end (d) Papain
[SSC CPO 2022] of the previous one [SSC CHSL 2022]

CAREERWILL PUBLICATION 79
218.Insufficient levels of parathyroid (a) Barthelemy Dumortier (a) Gunter Blobel
hormone and low amount of (a) Maurice Wilkins (b) Camillo Golgi
calcium in the blood causes (c) Anton Van Leeuwenhoek (c) William Harvey
which of the following conditions? (d) Robert Remak (d) Paul Ehrlich
(a) Malaria [SSC CPO 2024] [SSC MTS 2023]
(b) Anaemia 225.Who explained the structure of 231.Which bacteria was discovered by
(c) Diabetes protein? Barry Marshall and Robin Warren
that colonises the human
(d) Hypocalcemia (a) Emil Fischer
stomach and causes chronic
[SSC MTS 2023] (b) Pauling and Corey superficial gastritis ulcers?
219.Steapsin, the enzyme which (c) Johnson and Cristae (a) Campylobacter jejuni
converts fats into fatty acids and
(d) RF Rose (b) Helicobacter pylori
glycerol, is secreted by .......... .
[SSC CPO 2023] (c) Neisseria gonorrhoeae
(a) stomach
226.In which year did an American (d) Entamoeba histolytica
(b) pancreas cytogeneticist named Joe Hin [SSC MTS 2023]
(c) small intestine Tjio publish a research finding 232.Which among the following are
(d) large intestine that defined 2n=46 as the exact commonly known as blood thinners?
[SSC MTS 2023] number of human chromosomes? (a) Anticoagulants
220.Which among the following (a) 1950 (b) 1952 (b) Antibiotics
mineral is essential for the (c) 1956 (d) 1960
synthesis of thyroid hormones (c) Anticaking agent
[SSC CGL 2023]
(thyroxine)? (d) Antibodies
227.Who developed the technique of [SSC MTS 2023]
(a) Iron (b) Iodine preserving the quality of food by
(c) Selenium (d) Chromium 233.In t he year 1925, who
raising its temperature to prevent
[SSC MTS 2023]
ext racted lipids from an
microbial growth in the food? erythrocyte sample and found
221.Which of the following is an (a) Antonie van Leeuwenhoek that lipid monolayers are good
inactivated (killed) polio
(b) Joseph Lister for measuring molecular surface
vaccine developed in 1952?
(c) Robert Koch area versus lateral pressure?
(a) Salk vaccine (a) Gorter and Grendel
(d) Louis Pasteur
(b) Imvanex vaccine (b) Carson and Eccles
[SSC CHSL 2024]
(c) HDCV vaccine (c) Avery and Buck
228.Which cytologist demonstrated
(d) TAB vaccine (d) Margulis and Ruska
the role of the endoplasmic
[SSC CGL 2024]
reticulum (ER) in prot ein [SSC CGL 2024]
222.In which year did Walther processing and sorting in a 234.Who published Systema
Flemming coined the term variety of cells in the 1960s ? Naturae in 1735 classifying the
‘chromatin’ for the stained three kingdoms of nature and
(a) Ralph M Steinman
substance found in the cell outlining the sexual system
nucleus? (b) George E Palade
for the classification of plants?
(a) 1900 (b) 1840 (c) Nettie Stevens (a) Carl Woese
(c) 1849 (d) 1879 (d) Cyril Darlington (b) Robert Whittaker
[SSC CGL 2023] [SSC CHSL 2023]
(c) Ernst Haeckel
223.Which ecologist is famous for 229.Which of the f ollowing
(d) Carolus Linnaeus
studying plant life in the personalities is a well-known
[SSC CGL 2024]
Indiana Dunes in 1896? Indian plant physiologist and
235.In the context of DNA, which of
(a) Robert Macarthur physicist?
the following principles governs
(b) G Evelyn Hutchinson (a) JC Bose (b) CV Raman the process of Transcription ?
(c) Henry Chandler Cowles (c) CNR Rao (d) JRD Tata (a) The transforming principle
[SSC CHSL 2023] (b) The principle of compleme-
(d) Aldo Leopold
[SSC CGL 2023] 230.In 1873, who published the ntarity
224.Who described the algae first photograph of nerve tissue (c) The principle of inheritance
Spirogyra in 1674 and named the stained with t he black (d) Semiconservative nature of
motile organisms Animalcules, reaction technique, describing DNA
meaning ‘little animals’? a whole nerve cell? [SSC CHSL 2024]

CAREERWILL PUBLICATION 80
236.In which year did Wilhelm 241.What kind of phyllotaxy was 247.Why do pickles last longer?
Johannsen coin the term ‘gene’ examined in the Guava plant? (a) The water content of the
to describe the Mendelian (a) Superimposed pickle protects the pickle
units of heredity (b) Whorled from spoilage.
(a) 1920 (b) 1900 (c) Alternate (b) Bacterial and fungal cells get
(c) 1909 (d) 1910 (d) Opposite plasmolysed in high salt
[SSC CHSL 2024]
[SSC CGL 2024]
concentration of pickle.
237.In which year did a trio of 242.Match the terms in column A (c) Pickle is prepared in a
scientists, Avery, MacLeod and with their respective vacuum so that no harmful
McCarty, prove that except properties in column B. bacteria can grow on it.
viruses, all living organisms (d) Only beneficial bacteria can
Column-A
have DNA as their genetic grow in the pickle.
material? i. Glucose
[SSC CPO 2023]
(a) 1961 (b) 1944 ii. Yeast
248.Which of the soluble fibres
(c) 1918 (d) 1902 iii. Glycolysis found in fruits is used as a
[SSC CHSL 2024] iv. Pyruvic acid thickener in cooking and baking?
238.Which antibiotic is considered Column-B (a) Lignin (b) Cellulose
the first miracle drug, used to a. Intermediate substance in (c) Pectin (d) Inulin
treat thr oat infections, breakdown of glucose [SSC CGL 2023]
meningitis, syphilis and other b. Glucose is converted into 249.What is the cottony growth on
bacterial infections? pyruvic acid stale and wet bread called?
(a) Aciclovir c. Uses nutr ients for (a) Fungi (b) Algae
(b) Nifuratel fermentation process (c) Bacteria (d) Lichens
(c) Penicillin d. Best organic substrate for [SSC CHSL TIER II 2024]
(d) Metronidazole respiration 250.Mendel proposed the law of
[SSC MTS 2023] (a) i-b, ii-a, iii-d, iv-c independent assortment on
(b) i-d, ii-c, iii-b, iv-a the basis of
239.Which of the following is a non
- perishable food? (c) i-a, ii-b, iii-c, iv-d (a) dihybrid crosses
(a) Pulses (b) Meat (d) i-b, ii-d, iii-a, iv-c (b) Monohybrid crosses
(c) Milk (d) Curds [SSC CGL 2024] (c) genes
[SSC CGL 2024] 243.What do you call the type of (d) alleles
240.What do we mean by Allen’s drugs that mimic the natural [SSC CHSL 2024]

rule? messenger by switching on the 251.Which of the Mendel’s laws

receptor? states that a diploid organism
(a) Mammals fr om colder
climates gener ally have (a) Antidepressants passes a randomly selected
shorter ears and limbs to (b) Depressants allele for a trait to its offspring,
minimise heat loss. (c) Agonist such that the offspring inherit
one allele from each parent ?
(b) Desert lizards lack the (d) Antagonists
physiological ability that [SSC CGL TIER II 2023] (a) Law of independent assortment
mammals have to deal with 244.Which of the following is a (b) Law of segregation
the high temperatures of tertiary consumer? (c) Law of dominance
their habitat. (a) Grass (b) Snake (d) Law of paired factor
(c) Some plants have no leaves (c) Frog (d) Grasshopper [SSC CHSL 2024]
– they are reduced to spines [SSC MTS 2023] 252.The phenomenon of the
– and the photosynthetic 245.Who among the following interaction between nonallelic
function is taken over by the proposed the term ‘ecosystem’? genes at t wo or more loci
flattened stems. resulting in one gene masking
(a) AG Tansley (b) Grinnel
(d) The body compensates low the phenotypic expression of
(c) Lindeman (d) Turreson
oxygen availability by another gene, is known as:
[SSC CGL 2022]
increasing red blood cell (a) incomplete inheritance
production, decreasing the 246.In which of the following is
nicotine present in high quantity? (b) linkage
binding affinity of
haemoglobin and by (a) Tobacco (b) Tea (c) epistasis
increasing the breathing rate. (c) Buttermilk (d) Lime soda (d) complete inheritance
[SSC CGL 2024] [SSC CPO 2024] [SSC CHSL 2024]

CAREERWILL PUBLICATION 81
253.At what temperature (in degree (a) 25.0 kg/m2 (b) 22.2 kg/m2 257.What do you call the body cavity
celsius) is milk heated for 15 (c) 16.6 kg/m2 (d) 18.0 kg/m2 that is lined by mesoderm?
to 30 seconds to kill microbes [SSC MTS 2024] (a) Coelom
in the pasteurisation method? 256.The process by which a water
(b) Diploblasts
(a) 45 (b) 100 body gradually becomes
enriched with nutrients and (c) Radial symmetry
(c) 70 (d) 20
[SSC CHSL 2023] minerals, mainly phosphorus (d) Triploblasts
254.Which level of the food chain and nitrogen, leading to [SSC MTS 2024]

includes millipede, springtails, enormous growth of algae on 258.When the body is deprived of
woodlice, dung flies and slugs the surface of the water, thus energy from food, which of the
that feed on the dead or decreasing the amount of following tissues is used to feed
decaying plants or animals? dissolved oxygen in the water on its own?
(a) Carnivores (b) Detritivores is known as:
(a) Nervous tissue
(c) Omnivores (d) Herbivores (a) Eutrophication
(b) Collenchyma tissue
[SSC CHSL 2022] (b) Biomagnification
255.Calculate the Body Mass Index (c) Hypoxia (c) Epithelial tissue
(BMI) of a person whose weight (d) Bioaccumulation (d) Adipose tissue
is 50 kg and height is 1.5 m. [SSC MTS 2024] [SSC MTS 2024]

Answer Key
1. (b) 27. (c) 53. (d) 79. (d) 105. (c) 131. (b) 157. (c) 183. (d) 209. (c) 235. (b)
2. (a) 28. (b) 54. (c) 80. (c) 106. (b) 132. (c) 158. (c) 184. (c) 210. (c) 236. (c)
3. (d) 29. (b) 55. (c) 81. (b) 107. (b) 133. (a) 159. (c) 185. (c) 211. (c) 237. (b)
4. (a) 30. (b) 56. (a) 82. (d) 108. (d) 134. (d) 160. (d) 186. (b) 212. (c) 238. (c)
5. (d) 31. (b) 57. (c) 83. (c) 109. (d) 135. (a) 161. (b) 187. (d) 213. (c) 239. (a)
6. (d) 32. (a) 58. (d) 84. (c) 110. (a) 136. (d) 162. (d) 188. (a) 214. (a) 240. (a)
7. (d) 33. (d) 59. (d) 85. (d) 111. (b) 137. (d) 163. (d) 189. (a) 215. (b) 241. (d)
8. (c) 34. (b) 60. (d) 86. (c) 112. (d) 138. (d) 164. (d) 190. (d) 216. (d) 242. (b)
9. (c) 35. (c) 61. (c) 87. (c) 113. (b) 139. (d) 165. (d) 191. (d) 217. (a) 243. (c)
10. (d) 36. (b) 62. (c) 88. (c) 114. (c) 140. (d) 166. (c) 192. (d) 218. (d) 244. (b)
11. (d) 37. (b) 63. (d) 89. (c) 115. (b) 141. (d) 167. (b) 193. (a) 219. (b) 245. (a)
12. (a) 38. (a) 64. (c) 90. (b) 116. (b) 142. (c) 168. (b) 194. (b) 220. (b) 246. (a)
13. (d) 39. (c) 65. (d) 91. (b) 117. (b) 143. (b) 169. (d) 195. (c) 221. (a) 247. (b)
14. (a) 40. (c) 66. (b) 92. (b) 118. (c) 144. (b) 170. (b) 196. (a) 222. (d) 248. (c)
15. (b) 41. (b) 67. (d) 83. (b) 119. (d) 145. (d) 171. (d) 197. (c) 223. (c) 249. (a)
16. (a) 42. (c) 68. (d) 94. (b) 120. (d) 146. (c) 172. (c) 198. (c) 224. (c) 250. (a)
17. (b) 43. (b) 69. (b) 95. (a) 121. (b) 147. (b) 173. (d) 199. (c) 225. (b) 251. (b)
18. (b) 44. (a) 70. (d) 96. (b) 122. (c) 148. (a) 174. (d) 200. (d) 226. (c) 252. (c)
19. (a) 45. (a) 71. (d) 97. (d) 123. (d) 149. (c) 175. (a) 201. (c) 227. (d) 253. (c)
20. (d) 46. (c) 72. (b) 98. (d) 124. (d) 150. (a) 176. (b) 202. (c) 228. (b) 254. (b)
21. (c) 47. (c) 73. (c) 99. (c) 125. (a) 151. (c) 177. (c) 203. (b) 229. (a) 255. (b)
22. (d) 48. (b) 74. (d) 100. (d) 126. (d) 152. (d) 178. (d) 204. (a) 230. (b) 256. (a)
23. (d) 49. (b) 75. (a) 101. (a) 127. (b) 153. (a) 179. (c) 205. (c) 231. (b) 257. (a)
24. (a) 50. (b) 76. (c) 102. (b) 128. (c) 154. (a) 180. (d) 206. (c) 232. (a) 258. (d)
25. (b) 51. (c) 77. (d) 103. (b) 129. (d) 155. (b) 181. (b) 207. (b) 233. (a)
26. (c) 52. (b) 78. (b) 104. (b) 130. (b) 156. (b) 182. (a) 208. (c) 234. (d)

CAREERWILL PUBLICATION 82