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# Question Answer Option (A) Answer Option (B) Answer Option (C) Answer Option (D)
1 It is very stable and allows viruses to exist in water, air, and the ground. nucleoproteins nucleocapsid tail of virus capsid
deoxyribonucleic acid and ribonucleic
2 The genome of the virus includes the Deoxyribonucleic acid Ribonucleic acid amino acids
acids
3 Where can viruses replicate? Animals Plants Bacteria All
4 What type of virus is the smallpox virus? DNA enveloped virus RNA enveloped virus DNA virus RNA naked virus
5 Viruses without nuclear envelope is called as? icosahedral virus naked virus enveloped virus bilayer virus
6 There are 3 stages of HIV infection, which sequence is correct AIDS, Chronic HIV, Acute HIV Chronic HIV, AIDS, Acute HIV Acute HIV, Chronic HIV, AIDS all of them
7 If a molecule is reduced it gain energy electrons hydrogen protons all of above
The energy required to destabilize the existing chemical bond is called as
8 activation destabalization kinetic free
______
Which of the following organisms have the greatest problem with
9 C4 plants heterotrophs C3 plants CAM plants
photorespiration?
10 Hexokinase is the enzyme found in glycolysis and pentose pathway pentose pathway glycolysis Kreb's cycle
11 what happened to glucose when it will administered orally___ digestion excretion circulation respiration
12 ATP synthase is located in the ________ of the mitochondrion intermembrane space outer membrane matrix inner membrane
13 ___ made the protective coatings around the plant organs______ lipids waxes glycerols glycolipids
14 Glycogen is present in all body except Brain Heart Blood Tissues
15 This amino acid not found in proteins is beta alanine Glutamine Tyrosine Histidine
16 In contrast to eukaryotic mRNA, prokaryotic mRNA contains Can be polycistronic Is synthesized with introns Can only be monocistronic Has a poly A tail
17 Restriction endonucleases found in Viruses Bacteria Eukaryotes All of these
18 A fatty acid is composed of ___ acid group at one end acid groups at both ends amino group at one end amino group at both ends
19 Carbon dioxide passes through plasma membrane of cells by: Active transport Passive transport Facilitated diffusion Passive diffusion
20 Which of the following cells do not possess a nucleus? Sieve tube cells Bacteria Red blood cells All of the above
Plasma membrane has charged
Proteins are embedded in the lipid pores for transport of materials
21 What was the unit membrane model? Plasma membrane has lipid bilayer. All of the above.
bilayer. which cannot penetrate through
the lipid bilayer.
22 The cell theory is applicable to all organisms except: Bacteria Fungi Algae Viruses
23 What part of the cell serves as an intracellular highway? ER Golgi apparatus cell membrane mitochondria
24 Acetylcholine is an example of ___________ . Neurohormone Neurotransmitter Hormone Pheromone
Regulation of ___________________ is NOT a function of hypothalamus
25 Body temperature Blood water potential Urine osmolarity Circadian rhythms & emotions
in humans.
26 Experience has no influence on this type of behaviour. Kinesis Imprinting Habituation Insight learning
27 What is the true chemical nature of antidiuretic hormone? It is a protein. It is an amino acid derivative. It is made from cholesterol. It is a lipoprotein.
Secretion of glucagon by
Secretion of insulin by pancreas in Secretion of oxytocin in response
One of these processes does not happen as a result of negative pancreas in response to
28 response to increased blood glucose to dilation of cervix during All of the above.
feedback mechanism in humans? decreased blood glucose
concentration. childbirth.
concentration.
29 The only aquatic arthropods: Crustaceans Arachnids Myriapods Gastopods
30 Flame cells in Planaria constitute the: Digestive system Reproductive system Respiratory system Excretory system
The alimentary canal is formed from the The alimentary canal has a single
31 Which statement correctly describes the alimentary canal of hydra? endodermal cells. opening.
The alimentary canal is sac-like. All of the above.
32 The outer body wall of sponges is made up of which cells? Choanocytes Pinacocytes Mesenchymal cells Cnidocytes
In most triploblastic after embryonic development, the three layers are
33 Their functions in the body Structures associated with them Separate layers of cells Structures formed from them
represented as?
34 The substrate binds to specific region of enzyme called? key active site hyperactive site none of these
35 The reaction will proceed faster if the activation energy is? high low remains same none of these
The Induced fit model was introduced by Koshland in which of the
36 1960 1961 1959 1966
following year?
37 Which of the following best describes competitive inhibitors? Do occupy active site Destroy the structure of enzyme Resemble structurally with substrate both b and c
The Keq of a reaction remains unchanged in Enzymes speed up the rate of reaction in Harsh, acidic conditions can An enzyme is completely converted to product
38 Which of the following statements about enzymes is false? the presence of an enzyme DNA synthesis completely denature an enzyme during metabolism
39 The genetic change in a population caused by natural selection is called? polymorphism specialization gene linkage adaptation
40 Carolus Linnaeus was believer of which of the following? special creation natural selection catastrophism Inheritance of acquired characters
41 Most of the fossils are found in which of the following? Metamorphic rocks soil Volcanic mountains Sedimentary rocks
A group of interbreeding individuals belonging to a particular species and
42 community family race population
sharing a common geopraphic area is called?
43 Which condition can be explained by Lamarckism? How giraffes got their long neck How humans lost their tail How humans became bipedal all of these
44 In which plant leaves are modified into a sac pitcher plant sundew lichens leguminous plants
45 At night transpiration takes place by stomata lenticcels cuticle intercellular spaces
46 Vasodilation occurs during muscles relaxation contraction division movement
47 Blood cells fomed in lymph nodes are lymphocytes a granulocytes monocytes all of above
48 Antiserum is a serum containing antigen antitoxins antibodies all of above
49 A bacterial cell envelop does not include slime campsule cell wall cell membrane
50 Gonadotropin-releasing hormone is secrted by Hypothalamus piturtary gland thyroid thalamus
51 Corticosteroids is released by fetal adrenal gland fetal thalamus fetal hypothalamus fetal bartholins gland
Eye infection in new born babies is due to following sexually transmitted
52 gonorrhoa Genital Herpes Both a & b Chlamydia
disease
53 The cell wall of Archaebacteria does not contain which of the following? Glycoproteins Polysaccharides proteins Peptidoglycan
54 The human cells affected in HIV are which of the following? RBCs WBCs Platelets stem cells
55 In which organism males are haploid? Aphids mosquito butterfly honey bee
56 Duration of menstrual cycle is how many days on average? 25 26 27 28
57 Which of the following is an ovoviviparous animal? basking shark humans blue shark all of these
58 Which of the following is found beneath the prostate gland? vas deferens seminal vesicle urethra cowper's gland
59 Cardiac muscles are the muscles of: Kidney Liver Heart Stomach
Skeletal muscles are also called striped or striated muscle because they
60 Pentaceps Triceps Biceps Triceps and biceps
show alternate light and dark bands e.g
61 Skeletal muscles are composed of: Myosin only Actin only Both actin and myosin Actin, myosin, tropomyosin
Which of the following statement is incorrect about skeletal muscle They are 1 -1 nm in diameter and They contain O2 storing molecules Their cytoplasm contains the high
62 They are multinucleated
surrounded by sarcolemma called hemoglobin concentration of carbohydrates
fibres?
63 All of the following features are unique to cardiac muscle cells except? They are linked together via intercalated discs There are gap junctions between cells They form branching chains They are non-striated
64 Colour of flower indicates ________ of the flower: Genotype Trait Phenotype None of them
65 XXY in case of Drosophila is a: Fertile male Sterile female Fertile female Sterile male
Crossing over occur between ____________ of homologous
66 Sister pair of chromatid Sister chromatids of homologous Non-sister chromatin All of them
chromosomes:
67 XO-XX type pattern of sex determination is found in: Fruit fly Protenor bug Butterfly All of them
68 How many types of gametes possible when rrYy is present? 1 2 3 4
