Biology Test - #10 (Full Contact Number: 9667591930 /

Syllabus) 8527521718

Biology I - Section A 5 Productivity is the rate of production of biomass

expressed in terms of :
1 Which of the following algae is likely to be found i. (kcal m ) yr
−3 −1

in the deepest waters? ii. g m yr

−2 −1

1.Green iii. g m yr
−1 −1

2.Brown iv. (kcal m ) yr

−2 −1

3.Red 1. ii
4.All are found at equal depths 2. iii
3. ii and iv
2 Consider the following two statements: 4. i and iii
I. Plant cells undergo cytokinesis in a different manner
than the animal cells. 6 The reactions of the Calvin cycle can take place as
II. Plant cells are enclosed by a relatively inextensible long as which of the following products of the light
cell wall. dependent reactions are available?
Of the two statements: 1. Water and Glucose
1. Both I and II are correct and II explains I 2. Water and ATP
2. Both I and II are correct but II does not explain I 3. Oxygen and Carbon dioxide
3. I is correct but II is incorrect 4. ATP and NADPH
4. I is incorrect but II is correct
7 Somaclonal variations are:
3 Consider the given two statements:
seen in plants that have been produced by plant tissue
Statement I: In C4 plants, photorespiration does not 1. culture.
occur. due to environmental factors and have no
2.
Statement II: C4 plants do not have RuBisCO in any of evolutionary advantage.
their cells. 3. induced by mutations and are inherited.
1. Both Statement I and Statement II are correct and 4. not useful in plant breeding programs.
Statement II explains Statement I
2. Both Statement I and Statement II are correct but 8 Lactic Acid Bacillus, while used for converting
Statement II does not explain Statement I
milk to curd, increases the nutritional value of curd by
3. Statement I is correct but Statement II is incorrect
adding vitamin:
4. Statement I is incorrect but Statement II is correct
1. A 2. B12
4 In an open ocean, the pyramid of biomass is often 3. C 4. D
inverted. How can this support higher trophic levels?
The food produced by primary producers is of high 9 Identify the correct statements:
1.
quality
The primary producers grow and reproduce at high The unisexual male flower in angiosperms is
2. I.
rates staminode.
3. Primary producers are very abundant. Heterothallic and dioecious are the terms used to
II.
The predators at higher trophic levels are very describe unisexual conditions.
4.
efficient III. Cucurbits and coconuts are dioecious plants.
IV. Papaya and date palm are monoecious plants.

1. Only II 2. Only III and IV

3. Only I and II 4. Only I, III, and IV

10 What is the dihybrid test cross-ratio?

1. 1:1 2. 3:1
3. 9:3:3:1 4. 1 : 1 : 1: 1

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11 Which essential element is important for the 15 Match each item in Column I with one item in
opening and closing of stomata in higher plants? Column II and chose your answer from the codes given
1. Calcium below.
2. Sodium Column I Column II
3. Potassium (type of secondary metabolite) (example)
4. Phosphorus I. Alkaloid 1. Abrin
II. Toxin 2. Morphine
12 Which of the following is not a reason that accounts III. Lectin 3. Vinblastin
for greater biodiversity of tropics? IV. Drug 4. Concanavalin A
1. availability of more solar energy Codes:
2. more niche specialization I II III IV
3. more time for species diversification 1. 1 2 3 4
4. large seasonal variations in environmental factors 2. 2 1 4 3
3. 2 1 3 4
13 Consider the following statements: 4. 1 2 4 3
All the reference point while defining a transcription
I. 16 The free-living fungus Trichoderma can be used
unit is made with the coding strand.
It is the presence of a promoter in a transcription for:
II. unit that also defines the template and coding 1. killing insects
strands. 2. biological control of plant diseases
Exons are said to be sequences that do not appear in 3. controlling butterfly caterpillars
III. 4. producing antibiotics
mature or processed RNA.

Which of the above statements are true? 17 The Ti plasmid, used in transformation of plant
1. I and II only cells, is found in:
2. I and III only 1. Agrobacterium tumefaciens 2. Escherichia coli
3. II and III only 3. Bacillus thuringiensis 4. Xanthomonas citri
4. I, II, and III
18 The electron transport system in mitochondria is
14 A polysome is: located in the:
1. several mRNA molecules attached to a ribosome 1. Inner mitochondrial membrane
2. several ribosomes attached to a single mRNA 2. Outer mitochondrial membrane
3. the three major types of cellular RNAs attached to an 3. Inter membrane space
mRNA molecule 4. Matrix
4. many ribosomes attached to the surface of
endoplasmic reticulum 19 In a guard cell:
I. The outer walls are thick and elastic
II. Cellulose microfibrils are oriented longitudinally
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

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 Biology Test - #10 (Full Contact Number: 9667591930 /
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20 Match each item in COLUMN I with one in 24 Consider the two statements:
COLUMN II and select the correct match from the codes Most of the developing and underdeveloped world is
given: I: rich financially, but poor in biodiversity and
COLUMN traditional knowledge.
COLUMN I
II Most of the industrialised nations are rich in
Elements that are components of II: biodiversity and traditional knowledge related to bio-
A P C, H, O, N
biomolecules resources but poor in biotechnology.
Elements that are components of
B Q Mg, P
energy – related chemical compounds 1. Statement I is correct.
Elements that activate or inhibit Zn, Mo, 2. Statement II is correct.
C R
enzymes Mg 3. Both Statement I and Statement II are correct.
Elements that can alter the osmotic 4. Both Statement I and Statement II are incorrect.
D SK
potential of the soil
25 Identify the incorrect statement:
Codes:
Biodiversity is the term popularised by the
A B C D
sociobiologist Edward Wilson to describe the
1. P Q R S 1.
combined diversity at all levels of biological
2. Q R S P organisation.
3. R S P Q IUCN stands for International Union for
2.
4. S R Q P Conservation of Nature and Natural resources.
Robert May places the global species diversity in the
3.
21 Consider the given two statements: range of 20 to 50 million.
I. Mycoplasma are naturally resistant to antibiotics that More than 25 percent of the drugs currently sold in
4.
target cell wall synthesis the market are derived from the plants.
II. They are the smallest bacteria discovered yet
1. Both I and II are correct and II explains I 26 In India, the name Ramesh Chandra Dagar, is
2. Both I and II are correct but II does not explain I associated with:
3. I is correct but II is incorrect 1. Organic farming
4. Both I and II are incorrect 2. Conservation of forests
3. Recycling of plastic wastes
22 As we go from species to kingdom in a taxonomic 4. Preservation of water lands
hierarchy, the number of common characteristics
1. Will decrease 27 What controls the copy number of linked DNA if
2. Will increase plasmid is used as a vector in bacterial transformation?
3. Will remain same 1. Ori 2. rop
4. May increase or decrease
3. Selectable markers 4. Promoter in the insert
23 Coralloid roots in Cycas are associated with
nitrogen fixing:
28 How many of the following can be characterized as
1. Rhizobium 2. Frankia action of gibberellins on plants?
I. They can be used to increase the length of grape
3. Azospirillum 4. Cynobacteria stalks.
II. They can elongate and improve the shape of apple.
III. They speed up malting process in brewing industry.
IV. They hasten the maturity period of juvenile
conifers.
V. They promote bolting in many plants with rosette
habit.
1. 2 2. 3
3. 4 4. 5

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29 Identify the row where the crop [Column I], its Biology I - Section B
variety [Column II] and resistance to disease/pest
[Column III] are all correctly matched: 36 Consider the two statements:
COLUMN I COLUMN II COLUMN III Statement I: Bryophytes usually occur in damp, humid
1. Brassica Himgiri White rust and shaded localities and are not truly ‘successful’ on
2. Cowpea Pusa Komal Bacterial blight land.
3. Flat bean Pusa Sem 2 Statement II: They are dependent on water for sexual
Shoot and fruit borer
4. Okra Pusa Gaurav Aphids reproduction.
1. Statement I is correct and Statement II is incorrect
2. Both Statement I and Statement II are correct and
30 Control points where a plant adjusts the quantity Statement II explains Statement I
and types of solutes that reach the xylem are: 3. Statement I is incorrect and Statement II is correct
1. Suberised casparian strips in the endodermis 4. Both Statement I and Statement II are correct but
2. Sclerenchyma of the pericycle Statement II does not explain Statement I:
3. Transport proteins of endodermal cells
4. Root hair cells 37 Water affects the process of photosynthesis in
higher plants because:
31 The only type of pollination which during I. Water stress can cause the stomata to close, hence,
pollination brings a genetically different type of pollen reducing the carbon dioxide availability.
grains to the stigma is: II. Water stress also makes leaves wilt, thus, reducing the
1. Chasmogamy 2. Cleistogamy surface area of the leaves and their metabolic activity as
3. Geitonogamy 4. Xenogamy well.
1. Only I
32 The phenomenon wherein, the ovary develops into 2. Only II
a fruit without fertilisation is called: 3. Both I and II
1. Parthenocarpy 4. Neither I nor II
2. Apomixis
3. Asexual reproduction 38 Consider the following statements:
4. Sexual reproduction I. If fatty acids were to be respired they would enter the
respiratory pathway as acetyl CoA.
33 Some amino acids are coded by more than one II. Glycerol enters the respiratory pathway after being
codon. Hence genetic code is: converted to PGAL.
III. Amino acids enter the respiratory pathway at some
1. Unambiguous 2. Non-specific
stage within the Krebs cycle but never as pyruvate or
3. Degenerate 4. Universal acetyl CoA.
1. Only II is incorrect
34 In a strand of nucleic acid two nucleotides are 2. Only III is incorrect
linked together by: 3. Both I and III are incorrect
1. 3’ – 5’ phosphodiester bond 4. I, II and III are correct
2. 5’ – 3’ phosphodiester bond
3. 2’ – 5’ phosphodiester bond 39 RNA interference involves silencing a specific
4. 3’ – 1’ phosphodiester bond mRNA by:

35 All the following are adaptations in desert plants to 1. interfering with its post transcriptional modification
minimize water loss except: not allowing the transport of mRNA from nucleus to
1. Thick cuticle 2.
cytoplasm
2. C photosynthesis
3
3. a dsRNA that binds to it and prevents its translation
3. CAM pathway
4. Sunken stomata 4. post translational degradation of the protein

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 Biology Test - #10 (Full Contact Number: 9667591930 /
Syllabus) 8527521718

40 Identify the correct statements regarding ecological 43 Consider the two statements:
succession: At least 1.0% impurities must be present in a sample
I:
Usually, secondary succession is faster than of domestic sewage to make it unfit for human use.
I:
primary succession. Waste water from industries often contains toxic
Ecological succession involves a change over time II: heavy metals like mercury, cadmium, copper and
II:
in vegetation only. lead that have a density greater than 5 gm/cm3.
Natural or human disturbance can convert a 1. Both Statement I and Statement II are incorrect
III: particular seral stage of succession to an earlier 2. Both Statement I and Statement II are correct
stage. 3. Only Statement II is correct
1. Only I and II 4. Only Statement I is correct
2. Only I and III
3. Only II and III 44 Given below are two statements : one is labelled as
4. I, II and III Assertion (A) and the other is labelled as Reason (R).
Dominance is not an autonomous
41 A donor DNA and plasmid vector DNA of E. coli Assertion (A): feature of a gene or the product that it
are cut by EcoRI. The plasmid contains genes for has information for.
resistance to ampicillin and tetracycline. The ECoRI The frequency of a gene or an allele in a
recognition sequence lies within the gene for tetracycline Reason (R): population is ultimately decided by
resistance. Ligase is used and the recombinant DNA is factors such as natural selection.
produced. The plasmids are transferred to E.coli with the
In the light of the above statements, choose the most
help of electroporation. Samples of the bacterial colonies
appropriate answer from the options given below :
are then grown in four different media: nutrient medium
plus ampicillin, nutrient medium plus tetracycline, Both (A) and (R) are true and (R) is the correct
1.
nutrient medium plus ampicillin and tetracycline, and explanation of (A).
nutrient medium without antibiotics. Non recombinant Both (A) and (R) are true but (R) is not the correct
2.
transformants will grow on: explanation of (A).
the nutrient medium plus ampicillin, but not on the 3. (A) is true but (R) is false.
1.
medium containing tetracycline. 4. (A) is false but (R) is true.
2. only on the medium containing both antibiotics.
on the medium containing tetracycline, but not on 45 In the given figure showing key components of the
3.
the medium containing ampicillin. nitrogen cycle, identify I, II, III and IV:
4. on all four types of medium.

42 You discover a new fungus. On careful examination A. Industrial

you find that the mycelium is septate and branched, they nitrogen fixation
reproduce asexually by conidia and you cannot identify B. Electrical
any sexual stage in its life cycle. To which fungal class nitrogen fixation
would you place this fungus? C. Denitrification
D. Ammonification
1. Phycomycetes 2. Ascomycetes
3. Basidiomycetes 4. Deuteromycetes
I II III IV
1. A B C D
2. B A C D
3. A B D C
4. B A D C

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 Biology Test - #10 (Full Contact Number: 9667591930 /
Syllabus) 8527521718

46 Consider the following statements: 50 Consider the following statements:

I. Pure water is usually defined as having a solute In prokaryotes, control of the rate of transcriptional
potential (Ψπ)of zero. I. initiation is the predominant site for control of gene
II. A solution will have a lower and hence more negative expression.
water potential than that of pure water. Regulation of lac operon by CAP is referred to as
III. The more solute molecules present, the more II. negative regulation.
negative the solute potential is.
III. The inducer of the lac operon is lactose.
Correct statements are:
1. I and II
2. I and III Which of the above statements are true?
3. II and III 1. I and II only
4. I, II and III 2. I and III only
3. II and III only
4. I, II, and III
47 Consider the two statements:
Food chains rarely extend for more than 4 or 5
I:
levels. Biology II - Section A
Consumers at each level convert, on an average,
II: only about 10% of the chemical energy in their food 51 The physiological basis of pleiotropy is:
to their own organic tissue. 1. lack of independent assortment in linked genes
1. Both I and II are correct and II explains I. 2. separation of homologous at Anaphase I in meiosis I
2. Both I and II are correct but II does not explain I. 3. dominance is not an autonomous feature of an allele
3. Only I is correct. inter-relationships of many metabolic pathways in the
4. Both I and II are incorrect. 4.
living organisms

48 Seeds offer several advantages to angiosperms. 52 In Obelia:

Which of the following is not one? a. both polyp and medusa forms exist during its life
1. The process is more dependable cycle
2. Better adaptive strategies for dispersal b. metagenesis, a sort of alternation of generation, is
3. Protection of the young embryo seen
4. Genetic uniformity c. polyps produce medusae sexually and medusae form
the polyps sexually
49 One set of a plant was grown at 12 hours a day and 1. only a is correct 2. only a and b are correct
12 hours night period cycles and it flowered while in the 3. only c is correct 4. a, b and c are correct
other set, night phase was interrupted by a flash of light
and it did not produce a flower. Under which one of the 53 The development of Periplaneta americana is:
following categories will you place this plant? 1. Paurometabolous with nymph moulting about 13
1. Darkness neutral times to reach the adult form and the next to last
2. Day neutral nymphal stage has wing pads.
3. Short day 2. Paurometabolous with nymph moulting about 13
4. Long day times to reach the adult form and the next to last
nymphal stage has wings.
3. Holometabolous with nymph moulting about 13 times
to reach the adult form and the next to last nymphal
stage has wing pads.
4. Holometabolous with nymph moulting about 13 times
to reach the adult form and the next to last nymphal
stage has wings.

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54 Transgenic animals are the animals that: 60 A tumor that invades surrounding tissues is usually
have had their DNA manipulated to possess and capable of producing metastases, may recur after
1. attempted removal, and is likely to cause death unless
express an extra [foreign] gene.
are genetically modified with the use of foreign genes adequately treated. Such a tumor is called a:
2. 1. Benign tumor 2. Malignant tumor
from a sexually compatible donor organism.
3. are produced by interspecific hybridisation. 3. Teratoma 4. Secondary tumor
4. are produced by inbreeding.
61 Which of the following is the structural and
55 The pineal gland: functional unit of liver?
I: helps in maintaining the normal rhythms of sleep- 1. Hepatic cells
wakefulness cycle and body temperature. 2. Hepatic cord
II. influences metabolism, pigmentation and the 3. Hepatic lobule
menstrual cycle. 4. Hepatic lobe
1. Only I is correct
2. Only II is correct 62 The simplest α amino acid is:
3. Both I and II are correct 1. Glycine 2. Alanine
4. Both I and II are incorrect 3. Serine 4. Lysine

56 Consider the following two statements: 63 Consider the following statements:

Not all copulations lead to fertilization and Menstruation only occurs if the released ovum is not
I: I:
pregnancy fertilized.
Fertilization can occur if the ovum and the sperms II: Lack of menstruation always indicates pregnancy.
II:
are simultaneously transported to the fallopian tubes. Of the given statements, the correct statements is/are:
1. Both I and II are correct and II correctly explains I. 1. I only 2. II only
2. Both I and II are correct but II does not explain I.
3. I is correct but II is incorrect. 3. I and II 4. None
4. I is incorrect but II is correct.
64 Crossing over or recombination can be defined as:
57 DNA replication is correctly described as: 1. exchange of segments between sister chromatids of
1. Semi-conservative and Continuous homologous chromosomes
2. exchange of segments between non sister chromatids
2. Semi-conservative and Discontinuous of homologous chromosomes
3. Conservative and Continuous 3. exchange of segments between sister chromatids of
4. Semi-conservative and Semi-discontinuous heterologous chromosomes
4. exchange of segments between non sister chromatids
58 The brain stem includes all the following except: of heterologous chromosomes
1. Medulla oblongata 2. Pons
3. Mid brain 4. Cerebellum

59 Which of the following organelles in a eukaryotic

cell can only be seen after staining with vital dye?
1. Mitochondria 2. Chloroplasts
3. Nucleus 4. Endoplasmic reticulum

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Syllabus) 8527521718

65 How many of the given statements regarding 69 The total number of floating ribs in human skeleton
Mendelian disorders are correct? is:
I Mendelian disorders are mainly determined by 1. 2
alteration or mutation in the single gene. 2. 4
II Sex-linked recessive disorders are common in 3. 6
the males of the species than in the females. 4. 14
III If a female whose father was colour blind
marries a normal male, none of her sons are 70 When compared with carbon dioxide, the partial
expected to be affected by the disorder. pressure of oxygen in the air and its solubility in water is
IV Phenylketonuria is an inborn error of respectively:
metabolism and also an example of pleiotropy. 1. lower, lower 2. lower, higher
V For a female to be affected with haemophilia, 3. greater, lower 4. greater, higher
her father must have haemophilia and her mother
at least be a carrier for the condition. 71 The least common of WBCs in the human blood
are:
1. 2
2. 3 1. Eosinophils 2. Lymphocytes
3. 4 3. Neutrophils 4. Basophils
4. 5
72 The increasing gradient of osmolarity in medullary
66 Emergency contraceptive methods must be interstitium, during concentration of urine, is mainly
employed within: caused by reabsortion of:
1. 72 hours of ovulation 1. NaCl from ascending limb of loop of Henle and of
2. 72 hours of the onset of menstrual flow urea by collecting duct
2. NaCl from descending limb of loop of Henle and of
3. 72 hours of unprotected coitus
urea by collecting duct
4. 72 hours of cessation of menstrual flow 3. NaCl from ascending limb of loop of Henle and of
urea by PCT
67 The greatest biodiversity on the earth is found in: 4. NaCl from descending limb of loop of Henle and of
1. African grasslands urea by PCT
2. Amazonian rain forest in South America
3. Western Ghats in India 73 Prior to the work of Avery, Macleod, and McCarty,
4. Nile delta in Egypt the genetic material was thought to be:
1. DNA 2. RNA
68 How many of the given statements regarding 3. Protein 4. Nucleotide
HIV/AIDS are true?
I. AIDS is a congenital disease
II. Syndrome means a group of symptoms
III. HIV is a rotavirus
IV. HIV does not have an envelope
HIV can be transmitted by an infected mother to her
V.
child through placenta

1. 2 2. 3
3. 4 4. 5

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 Biology Test - #10 (Full Contact Number: 9667591930 /
Syllabus) 8527521718

74 Match each item in COLUMN I [Hormone] with 77 Identify the incorrect statement:
one in COLUMN II [Chemical class] and select your Neanderthals lived between 1,50,000 and 1,00,000
answer from the codes given: 1.
years back.
COLUMN I COLUMN II Modern Homo sapiens arose between 75000 and
2.
A. ACTH a. Peptide 10000 years ago.
B. Estradiol b. Steroid Pre-historic cave art developed around 18000 years
3.
C. Thyroxine c. Amino-acid derived ago.
D. Epinephrine d. Iodothyronine 4. Agriculture came around 10000 years ago
Codes
A B C D 78 Identify the correct statement:
1. a b c d 1. Both Hugo de Vries and Darwin believed that it is a
2. a b d c mutation that causes evolution.
2. Both Hugo de Vries and Darwin believed that it
3. b a d c minor variations which cause evolution and not
4. b a c d mutation.
3. Mutations are small and directional while Darwinian
75 The number of correct statements from the given variations are random and directionless.
statements, regarding the members of Class 4. Evolution for Darwin was gradual while deVries
Cyclostomata, is: believed mutation caused speciation and hence called it
a. All living members are ectoparasites on some fishes. saltation (single-step large mutation).
b. The body bears 6-15 pairs of gill slits for respiration.
c. They have a sucking and circular mouth without jaws. 79 Which of the following sexually transmitted
d. Their body is devoid of scales and paired fins. infections is completely curable if diagnosed and treated
e. Cranium and vertebral column are bony. early?
f. Circulation is of open type. 1. Hepatitis B
1. 3 2. 4 2. Syphilis
3. 5 4. 6 3. Genital herpes
4. HIV
76 Match terms in Column I with their description in
Column II and select the correct match from the codes
80 Consider the two given statements:
given: I. Pulmonary circulation carries deoxygenated blood to
COLUMN I COLUMN II the lungs and brings oxygenated blood back to the heart.
A Saltation P The diversification of a group II. The systemic circulation provides nutrients, oxygen
of organisms into forms and other essential substances to the tissues and takes
filling different ecological carbon dioxide and other harmful substances away for
niches. elimination.
1. Only I is correct
B Adaptive Q Descent with modification.
2. Only II is correct
radiation
3. Both I and II are correct
C Natural R Single step large mutation.
4. Both I and II are incorrect
selection
D Evolution S Differential reproduction.

Codes:
A B C D
1. P R Q S
2. R P Q S
3. R P S Q
4. P R S Q

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81 Match each item in Column I with one in Column II 85 The following figure shows the determination of
and select the correct match from the codes given: sex by chromosomal differences. Which of the following
Column I Column II is/are correctly matched?
A Myasthenia gravis P Auto-immune A
B Arthritis Q Inflammation of joints
C Tetany R Low calcium in body fluids
D Osteoporosis S Low levels of oestrogen
Codes:
A B C D
1. P Q R S B
2. Q R S P
3. R S P Q
4. S P Q R

82 High concentrations of accumulated DDT in birds:

1. kills pathogens in their blood
2. causes sterility by affecting gametogenesis
3. leads to premature breaking of eggs 1. Only A 2. Only B
4. causes spasticity of the muscles of the body 3. Both A and B 4. Neither A nor B

83 A piece of DNA, somehow transferred into an alien

organism, will be able to multiply itself in the progeny
Biology II - Section B
cells of organism if:
1. It includes the centromere 86 During relaxation of a skeletal muscle:
2. It becomes a part of chromosome 1. Calcium ions that are bound to troponin C now bind
to troponin A
3. It does not contain any intron sequences 2. Cross bridge formation between myosin head and
4. It is a single stranded polynucleotide actin takes place
3. The A band of the sarcomere lengthens
84 A species whose distribution is restricted to a small 4. Calcium ions are pumped back to the sarcoplasmic
geographical area because of the presence of a cisternae
competitively superior species, is found to expand its
distributional range dramatically when the competing 87 Given below are two statements : one is labelled as
species is experimentally removed. This is called: Assertion (A) and the other is labelled as Reason (R).
1. Competitive Exclusion Greenhouse effect is harmful to life on
2. Competitive Release Assertion (A):
earth.
3. Competitive Supremacy It leads to increased risk in human
4. Competitive Inclusion Reason (R): beings for the development of certain
cancers.
In the light of the above statements, choose the most
appropriate answer from the options given below :
Both (A) and (R) are true and (R) is the correct
1.
explanation of (A).
Both (A) and (R) are true but (R) is not the correct
2.
explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

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88 Identify the incorrectly matched pair: 92 Arrange the following events in chronological
Type of epithelium Location sequence [first to last]:
Blood vessels and 1. protein-coated triacylglycerols enter lacteals
1. Simple squamous 2. triacylglycerol coated with protein
alveoli
3. fatty acids and glycerol packaged into micelles
Simple cuboidal non brush Proximal convoluted
2. 4. bile salts emulsify fats
bordered epithelium tubule
5. lipase digests fat
Stomach and small 1. 1,2,4,5,3
3. Columnar epithelium
intestine 2. 2,5,4,3,1
Bronchioles and 3. 3,5,4,1,2
4. Ciliated epithelium
fallopian tubes 4. 4,5,3,2,1

89 Arrange the following events in correct 93 In birds:

chronological order of their occurrence regarding the a. the characteristic feature is the presence of feathers.
recognition of an object seen by our eyes: b. forelimbs are modified into wings.
I. Light induces dissociation of retinal from opsin. c. flight is present in all members.
II. There is a change in the permeability of the d. hind limbs do not have scales.
membrane of photoreceptors. 1. Only a and d are incorrect
III. Potential differences are generated in the 2. Only c and d are correct
photoreceptor cells. 3. a, b and c are correct
IV. Action potential is generated in the ganglion cells 4. Only a and b are correct
through the bipolar cells.
V. Optic nerve transmits impulse to visual cortex. 94 Consider the following two statements:
VI. Neural impulses are analysed and the image formed I. The lungs are situated in the thoracic chamber which
on the retina is recognised based on earlier memory or is anatomically an air-tight chamber.
experience. II. This arrangement is essential as we cannot directly
1. I → III → II → IV → V → VI → VII alter the thoracic volume.
2. I → II → IV → III → V → VI → VII 1. Both I and II are correct and II correctly explains I
3. I → II → III → IV → V → VI → VII 2. Both I and II are correct but II does not explain I
4. I → II → III → IV → V → VII → VI 3. I is correct and II is incorrect
4. Both I and II are incorrect
90 What adaptation would be seen in the kidneys of a
mammal living in desert when compared to the kidneys 95 Given below are two statements : one is labelled as
in aquatic mammals? Assertion (A) and the other is labelled as Reason (R).
1. A higher percentage of cortical nephrons with short Transcription and translation can be
loop of Henle extending slightly into the medulla Assertion (A):
coupled in bacteria.
2. A higher percentage of cortical nephrons with long
loop of Henle extending deep into the medulla In bacteria, the mRNA does not require
3. A higher percentage of juxtamedullary nephrons with Reason (R): any processing to become active, and
long loop of Henle extending deep into the medulla also transcription and translation take
4. Presence of only juxtamedullary nephrons with long place in the same compartment.
loop of Henle extending deep into the medulla In the light of the above statements, choose the most
appropriate answer from the options given below :
91 Mendelian disorders are mainly determined by: 1.
Both (A) and (R) are true but (R) is not the correct
explanation of (A).
1. Alteration or mutation in a single gene.
2. Both (A) and (R) are false.
2. Chromosomal gross structural changes.
Both (A) and (R) are true and (R) is the correct
3. Recombination between linked genes. 3.
explanation of (A).
4. Jumping genes
4. (A) is true but (R) is false.

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 Biology Test - #10 (Full Contact Number: 9667591930 /
Syllabus) 8527521718

96 The connotations about the theory of special 99 Study the given diagram and select the correct
creation include: statements:
I: All living organisms (species or types) that we see
today were created as such.
II: Diversity was always the same since creation and will
be the same in the future also.
III: Earth is about 4 billion years old.
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct

97 Given below are two statements : one is labelled as

Assertion (A) and the other is labelled as Reason (R).
Agar gel electrophoresis is employed to
Assertion (A): check the progression of a restriction (a) is released from the ovary during
enzyme digestion. Statement I:
ovulation and has a secondary oocyte.
Restriction enzyme digestion are (b), (c), and (d) show cleavage divisions,
performed by incubating purified DNA Statement II:
and (e) is morula.
Reason (R): molecules with the restriction enzymes,
(g) is blastocyst and (h) shows
at the optimal conditions for that Statement III.
implantation.
specific enzyme.
In the light of the above statements, choose the most
appropriate answer from the options given below : 1. Only Statement I
1. Both (A) and (R) are false. 2. Only Statement I and Statement III
Both (A) and (R) are true but (R) does not 3. Only Statement II and III
2. 4. Statement I, Statement II, and Statement III
explain (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are true and (R) explains (A). 100 Given below are two statements : one is labelled as
Assertion (A) and the other is labelled as Reason (R).
98 Given below are two statements : one is labelled as If a person is infected with some deadly
Assertion (A) and the other is labelled as Reason (R). microbes to which a quick immune
Assertion (A): response is required as in tetanus, we
The logistic growth model is more
need to directly inject the preformed
Assertion (A): realistic for most animal populations in
antibodies or antitoxin.
nature.
This type of immunization is called
Resources for growth for most animal Reason (R):
passive immunization.
Reason (R): populations are finite and become
limiting sooner or later in the nature. In the light of the above statements, choose the most
appropriate answer from the options given below :
In the light of the above statements, choose the most
appropriate answer from the options given below : 1. Both (A) and (R) are false
1. (A) is true but (R) is false. 2. (A) is true but (R) is false.
Both (A) and (R) are true and (R) correctly explains Both (A) and (R) are true but (R) does not
2. 3.
(A). explain (A).
3. (A) is false but (R) is true. 4. Both (A) and (R) are true and (R) explains (A).
Both (A) and (R) are true but (R) does not explain
4.
(A).

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 Biology Test - #10 (Full Contact Number: 9667591930 /
Syllabus) 8527521718

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