NEET Practice Test Paper 1 Zoology by TEACHING CARE online tuition and coaching classes
NEET Practice Test Paper 1 Zoology by TEACHING CARE online tuition and coaching classes.
-
1. Which of the following is considered a hot-spot of biodiversity in India ? (a) Western ghats (b) Indo-Gangetic plain
(c) Eastern ghats (d) Aravalli hills
2. Identify the odd combination of the habitat and the particular animal concerned
(a) Dachigam National Park— Snow leopard
(b) Sunderbans—Bengal tiger
(c) Periyar— Elephant
(d) Rann of Kutch—Wild ass
3. One endangered species of Indian medicinal plants is that of
(a) Podophyllum (b) Ocimum
(c) Garlic (d) Nepenthes
4. Employment of hereditary principles in the improvement of human race is
(a) Euthenics (b) Eugenics
(c) Euphenics (d) Ethnology
5. Homeostasis is
(a) tendency to change with change in environment
(b) tendency to resist change
(c) disturbance in regulatory control
(d) plants and animals extracts used in homeopathy
6. Pedology is science of
(a) earth (b) soil
(c) diseases (d) pollution
7. Which of the following is not true for a species ?
(a) Members of a species can interbreed
(b) Gene flow does not occur between the populations of a species
(c) Each species is reproductively isolated from every other species
(d) Variations occur among members of a species
8. Top-shaped, multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characteristic features of (a) polypetalous angiosperms
(b) gamopetalous angiosperms
(c) conifers
(d) cycads
9. Two plants can be conclusively said to belong to the same species if they
(a) can reproduce freely with each other and form seeds
(b) have more than 90% similar genes
(c) look similar and possess identical secondary metabolites
(d) have same number of chromosomes
10. The haemoglobin of a human foetus
(a) has a lower affinity for oxygen than that of the adult
(b) its affinity for oxygen is the same as that of an adult
(c) has only 2 protein subunits instead of 4
(d) has a higher affinity for oxygen than that of an adult
11. What is the vital capacity of our lungs?
(a) Inspiratory reserve volume plus tidal volume
(b) Total lung capacity minus expiratory reserve volume
(c) Inspiratory reserve volume plus expiratory reserve volume
(d) Total lung capacity minus residual volume
12. Some of the growth regulators affect stomatal opening. Closure of stomata is brought about by
(a) indole butyric acid
(b) abscissic acid
(c) kinetin
(d) gibberellic acid
13. Pine apple fruit develops from (a) a unilocular polycarpellary flower
(b) a multipistillate syncarpous flower
(c) a cluster of compacrly borne flowers on a common axis
(d) a multilocular monocarpellary flower
14. Parthenocarpic tomato fruits can be produced by
(a) removing androecium of flowers before pollen grains are released
(b) treating the plants with low concentrations of gibberellic acid and auxins
(c) raising the plants from vernalized seeds
(d) treating the plants with phenyl mercuric acetate
15. What type of placentation is seen in sweet pea?
(a) Basal (b) Axile
(c) Free central (d) Marginal
16. In a cereal grain the single cotyledon of embryo is represented by
(a) coleorhiza (b) scutellum
(c) Aleurone layer (d) coleoptile
17. Male gametes in angiosperms are formed by the division of
(a) microspore (b) generative cell
(c) vegetative cell (d) microspore mother cell
18. Which one of the following is surrounded by callose wall ?
(a) Microspore mother cell (b) Male gamete
(c) Egg (d) Pollen grain
19. Phototropic and geotropic movements are linked to
(a) gibberel lins (b) enzymes
(c) auxins (d) cytokinins
20. The movement of water from one cell of the cortex to the adjacent one in roots is due to
(a) accumulation of inorganic salts in the cells
(b) accumulation of organic compounds in the cells
(c) chemical potential gradient
(d) water potential gradient
21. The major role of minor elements inside living organisms is to act as
(a) binder of cell structure
(b) co-factors of enzymes
(c) building blocks of important amino adds
(d) constituent of hormones
22. Which one of the following mineral elements plays an important role in biological nitrogen fixation?
(a) Molybdenum (b) Copper
(c) Manganese (d) Zinc
23. Stomata of a plant open due to
(a) influx of calcium ions
(b) influx of potassium ions
(c) efflux of potassium ions
(d) influx of hydrogen ions
24. Boron in green plants assists in
(a) sugar transport
(b) activation of enzymes
(c) acting as enzyme cofactor
(d) photosynthesis
25. What used to be described as Nissl’s granules in a nerve cell
are now identified as
(a) ribosomes (b) mitochondria
(c) cell metabolites (d) fat granules
26. Phytohormones are
(a) chemicals regulating flowering
(b) chemicals regulating secondary growth
(c) hormones regulating growth from seed to adulthood
(d) regulators synthesized by plants and influence physiological
processes
27. Bryophytes can be separated from algae because they (a) are thalloid forms
(b) have no conducting tissue
(c) possess archegonia with outer layer of sterile cells
(d) contain chloroplasts in their cells
28. Multicellular branched rhizoids and leafy gametophytes are characteristics of
(a) all bryophytes (b) some bryophytes
(c) all pteridophytes (d) some pteridophytes
29. Which of the following is a living fossil?
(a) Pinus longifolia (b) Ginkgo biloba
(c) Mirabilis jalapa (d) Dalbergia sissoo
30. Largest sperms in the plant world are found in
(a) Pinus (b) Banyan
(c) Cycas (d) Tsuja
31. Bryophytes are dependent on water because
(a) water is essential for fertilization for their homosporous nature
(b) water is essential for their vegetative propagation
(c) the sperms can easily reach upto egg in the archegonium
(d) archegonium has to remain filled with water for fertilization
32. Which one of the following statements about Cycas is incorrect?
(a) It does not have a well-organised female flower
(b) It has circinate vernation
(c) Its xylem is mainly composed of xylem vessels
(d) Its roots contain some blue-green algae
33. Ulothrix can be described as a
(a) non-motile colonial alga lacking zoospores
(b) filamentous alga lacking flagellated reproductive stages
(c) membranous alga producing zoospores
(d) filamentous alga with flagellated reproductive stages
34. Nine-tenth of all photosynthesis of world (85-90%) is carried out by (a) large trees with millions of branches and leaves
(b) algae of the ocean
(c) chlorophyll containing ferns of the forest
(d) scientists in the laboratories
35. Chlorophyll-a molecule at its carbon atom 3 of the pyrrole ring-II has one of the following
(a) aldehyde group
(b) methyl group
(c) carboxylgroup
(d) magnesium
36. Photosynthetically active radiation is represented by the range of wavelength
(a) 340-450 nm (b) 400-700 nm
(c) 500-600 nm (d) 400-950 nm
37. The principle of limiting factors was proposed by
(a) Blackmann (b) Hill
(c) Arnon (d) Liebig
38. Which one of the following is represented by Calvin cycle?
(a) Reductive carboxylation
(b) Oxidative carboxylation
(c) Photophosphorylation
(d) Oxidative phosphorylation
39. Which of the following is homologous organ?
(a) Wings of birds and locust
(b) Wings of birds (sparrow) and pectoral fins of fish
(c) Wings of bat and butterfly
(d) Legs of frog and cockroach
40. Middle piece of mammalian sperm possesses (a) mitochondria and centriole
(b) mitochondria only
(c) centriole only
(d) nucleus and mitochondria
41. Freshly released human egg has
(a) one Y-chromosome (b) one X-chromosome
(c) two X-chromosomes (d) Both (a) and (b)
42. During cleavage, what is true about cells?
(a) Nucleocytoplasmic ratio remains unchanged
(b) Size does not increase
(c) There is less consumption of oxygen
(d) The division is like meiosis
43. Fertilizins are emitted by
(a) immature eggs (b) mature eggs
(c) sperms (d) polar bodies
44. Eye lens is formed from
(a) ectoderm (b) mesoderm
(c) endoderm (d) both (a) and (b)
45. Blastopore is
(a) opening of neural tube (b) opening of gastrocoel
(c) future anterior end of embryo (d) found in blastula
46. Meroblastic cleavage division is
(a) horizontal (b) partial/parietal
(c) total (d) spiral
47. Termination of gastrulation is indicated by
(a) obliteration of blastocoel
(b) obliteration of archenteron
(c) closure of blastopore
(d) closure of neural tube
48. In humans, visceral organs are innervated by (a) sympathetic nerves and are under conscious control
(b) parasympathetic nerves and are under conscious control
(c) Both (a) and (b)
(d) both sympathetic and parasympathetic nerves but are not under
conscious control
49. Darwin’s finches provide an excellent evidence in favour of evolution. This evidence comes from the field of
(a) Biogeography (b) Anatomy
(c) Embryology (d) Palaeontology
50. In the chemistry of vision in mammals, the photosensitive substance is called
(a) sclerotin (b) retinal
(c) rhodopsin (d) melanin
51. In frog, “fenestra ovalis” is
(a) the opening in the auditory capsule which separates the middle ear from internal ear
(b) the air-filled cavity of the middle ear
(c) the communication between the pharynx and the tympanic cavity
(d) the external opening, of the tympanic cavity which is covered by the tympanic membrane
52. The roof of the cranium of frog is formed by
(a) parasphenoid (b) alisphenoid
(c) frontoparietal (d) orbitosphenoid
53. Which of the following pairs, is correctly matched?
(a) Hinge joint—between vertebrae
(b) Gliding joint—between zygapophyses of the successive vertebrae
(c) Cartilaginous joint—skull bones
(d) Fibrous joint—between phalanges
54. The part of life cycle of malarial parasite Plasmodium vivax, that is passed in female Anopheles is (a) sexual cycle
(b) pre-erythrocytic schizogony
(c) exo-erythrocytic schizogony
(d) post-erythrocytic schizogony
55. If all ponds and puddles are destroyed the organism likely to be destroyed is
(a) Leishmania
(b) Trypanosoma
(c) Ascaris
(d) Plasmodium
56. Protistan genome has
(a) membrane bound nucloeoproteins embedded in cytoplasm
(b) free nucleic acid aggregates
(c) gene containing nucleoproteins condensed together in loose mas s
(d) nucleoprot ein in direct contact wit h cell substance
57. Entamoeba coli causes
(a) pyorrhea (b) diarrhoea
(c) dysentery (d) None of these
58. Interferon’s are synthesized in response to
(a) mycoplasma
(b) bacteria
(c) viruses
(d) fungi
59. What is true for archaebacteria?
(a) All halophiles (b) All photosynthetic
(c) All fossils (d) Oldest living beings
60. Cauliflower mosaic virus contains
(a) ssRNA (b) dsRNA
(c) dsDNA (d) ssDNA
61. Which pair of the following belongs to Basidiomycetes? (a) Birds nest fungi and Pufballs (b) Pufballs and Claviceps
(c) Peziza and Stink horns (d) Morchella and Mushrooms
62. Trichoderma harzianum has proved a useful micro-organism for
(a) bioremediation of contaminated soils
(b) reclamation of wastelands
(c) gene t ransfer in higher plants
(d) biological control of soil-borne plant pathogens
63. In which one of the following do the two name refer to one and the same thing ?
(a) Tricarboxylic acid cycle and urea cycle
(b) Krebs cycle and Calvin cycle
(c) Tricarboxylic acid cycle and citric and cycle
(d) Citric acid cycle and Calvin cycle
64. In glycolysis, during oxidation electrons as removed by
(a) ATP
(b) glyceraldehyde-3-phospnate
(c) NAD +
(d) molecular oxygen
65. During which stage, in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP
(a) glycolysis
(b) Krebs cycle
(c) conversion of pyruvic arid to acetyl Co-A
(d) electron transport chain
66. Chemiosmotic theory of ATP synthesis in the chloroplast and mitochondria is based on
(a) membrane potential
(b) accumulation of Na+ ions
(c) accumulation of K+ ions
(d) proton gradient
67. Which is correct about cell theory in view current status of our knowledge about cell structure? (a) It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria
(b) Modified cell theory means that all living beings are composed of cells capable a reproducing
(c) Cell theory does not hold good because all living being do not have cellular organization (eg, viruses)
(d) Cell theory means that all living objects consist of cells whether or not capable of reproducing
68. Name of Schleiden and Schwann is associated with
(a) protoplasm as the physical basis of life
(b) cell theory
(c) theory of cell lineage
(d) nucleus functions as control centre of cell
69. Golgi apparatus is absent in
(a) higher plants (b) yeast
(c) bacteria and blue-green algae (d) None of the above
70. Cell recognition and adhesion occur due to biochemical’s of cell membranes named
(a) proteins (b) lipids
(c) proteins and lipids (d) glycoproteins and glycolipids
71. Genophore/bacterial genome or nucleoid is made of
(a) histones and non-hist ones (b) RNA and histones
(c) a single double stranded DNA (d) a single stranded DNA
72. In salivary gland chromosomes/polytene chromosomes pairing is
(a) absent
(b) occasional
(c) formed between non-homologous chromosomes
(d) formed between homologous chromosomes
73. Centromere is required for (a) movement of chromosomes towards poles
(b) cytoplasmic cleavage
(c) crossing over
(d) transcription
74. According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is
incorrect?
(a) Proteins in cell membranes can travel within t he lipid bilayer
(b) Proteins can also undergo flip-flop movements in the lipid bilayer
(c) Proteins can remain conf ined within ceriain domains of the membrane
(d) Many proteins remain completely embedded within t he lipid bilayer
75. Protein synthesis in an animal cell occurs
(a) only on the ribosomes present in cytosol
(b) only on ribosomes attached to the nuclear envelope and endoplasmic reticulum
(c) on ribosomes present in the nucleolus as well as in cytoplasm
(d) on ribosomes present in cytoplasm as well as in mitochondria
76. At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?
(a) During G1-stage of prophase
(b) During S-phase
(c) During entire prophase
(d) During telophase
77. Genes for cytoplasmic male sterility in plants are generally located in
(a) mitochondrial genome (b) cytosol
(c) chloroplast genome (d) nuclear genome
78. Chlorophyll in chloroplast is located in
(a) grana (b) pyrenoid
(c) stroma (d) Both (a) and (c)
79. Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesized DNA. Which of the following types of chromatin is expected to become radioactive if cells are exposed to radioactive thymidine as soon as they enter the S-phase? (a) Heterochromatin
(b) Euchromatin
(c) Both (a) and (b)
(d) Neither heterochromatin nor euchromarin but only the nucleolus
80. Lactose is composed of
(a) glucose + glucose (b) glucose + fructose
(c) fructose + galactose (d). glucose + galactose
81. Cellulose, the most important constituent of plant cell wall is made of
(a) unbranched chain of glucose molecules linked by a 1,4 glycosidic bond
(b) branched chain of glucose molecules linked by ß 1, 4 glycosidic bond in straight chain and a 1, 6 glycosidic bond at the site of branching
(c) unbranched chain of glucose molecules linked by ß 1, 4 glycosidic bond
(d) branched chain of glucose molecules linked by a 1,6 glycosidic bond at the site of branching
82. A drop of each of the following, is placed separately on four slides. Which of them will not coagulate
(a) Blood plasma
(b) Blood serum
(c) Sample from the thoracic of lymphatic system
(d) Whole blood from pulmonary vein
83. Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin? (a) Neutrophils (b) Basophils
(c) Eosinophils (d) Monocytes
84. Which one of the following is a fat-soluble vitamin and it’s related deficiency disease ?
(a) Ascorbic acid —-Scurvy
(b) Retinol— Xerophthalmia
(c) Cobalamine — Beri-beri
(d) Calciferol — Pellagra
85. Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?
(a) Duodenum : Triglycerides trypsin monoglycerides
(b) Small intestine : Starch amylase disaccharide (maltose)
(c) Small intestine : Proteins pepsin amino acids
(d) Stomach : Fats, Lipase micelles
86. What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
(a) Gastric juice will be deficient in chymosin
(b) Gastric juice wil l be deficient in pepsinogen.
(c) In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin
(d) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin
87. The animal with bilateral symmetry in young stage and radial pemamerous symmetry in the adult stage belong to the phylum
(a) Annelida (b) Mollusca
(c) Cnidaria (d) Echinodermata
88. In Arthropoda, head and thorax are of ten fused to form cephalothorax, but in which one of the following classes, is the body divided into head, thorax and abdomen ? (a) Insecta (b) Myriapoda
(c) Crustacea (d) Arachnida and Crustacea
89. Presence of gills in the tadpole of frog indicates that
(a) fishes were amphibious in the past
(b) fishes evolved from frog like ancestors
(c) frogs will have gills in future
(d) frogs evolved from gilled ancestors
90. A terrestrial animal must be able to
(a) excrete large amounts of water in urine
(b) conserve water
(c) actively pump salts out through the skin
(d) excrete large amounts of salts in urine
91. The world’s highly prized wool yielding ‘Pashmina’ breed is
(a) sheep (b) goat
(c) goat-sheep cross (d) Kashmiri sheep-Afghan sheep cross
92. From the following statem ents select the wrong one.
(a) Millipedes have two pairs of appendages in each segment of the body
(b) Prawn has two pairs of antennae
(c) Animals belonging to phylum- Porif era are exclusively marine
(d) Nematocysts are characteristic o f the phylum-Cnidaria
93. The chief advantage of encystment of an Amoeba is
(a) protection from parasites and predators
(b) the chance to get rid of accumulated waste products
(c) the ability to survive during adverse physical condit ions
(d) the abilit y to live for some time without ingesting food
94. Four radial vascular bundles are found in (a) dicot root (b) monocot root
(c) dicot stem (d) monocot stem
95. Axillary bud and terminal bud are derived from the activity of
(a) lateral meristem (b) intercalary meristem
(c) apical meristem (d) parenchyma
96. Which of the following statements is true?
(a) Vessels are multicellular with narrow lumen
(b) Tracheids are multicellular wit h narrow lumen
(c) Vessels are unicellular with wide lumen
(d) Tracheid s are unicellular with wide lumen
97. Chlorenchyma is known to develop in the
(a) pollen tube of Pinus
(b) cytoplasm of Chlorella
(c) mycelium of a green mould such as Aspergillus
(d) spore capsule of a moss
98. The “walking fern” is so named because
(a) it is dispersed through the agency of walking animals
(b) it propagates vegetative by its leaf tips
(c) it knows how to walk by itself
(d) its spores are able to walk
99. Water entering root due to diffusion is part of
(a) endosmosis (b) osmosis
(c) passive absorption (d) active absorption
100. In plant cells, peroxisomes are associated with
(a) photorespiration (b) phototropism
(c) photoperiodism (d) photosynthesis
Answer Key:
Biology :-
- A
- A
- A
- B
- B
- B
- B
- D
- A
- D
- D
- B
- C
- B
- D
- B
- B
- A
- C
- D
- B
- A
- B
- B
- A
- D
- C
- B
- B
- C
- C
- C
- D
- B
- B
- B
- A
- A
- B
- B
- B
- B
- B
- A
- B
- B
- A
- D
- A
- C
- A
- C
- B
- A
- D
- A
- D
- C
- D
- C
- A
- D
- C
- B
- D
- D
- C
- B
- C
- D
- C
- D
- A
- B
- D
- B
- A
- A
- B
- D
- C
- B
- B
- B
- B
- C
- D
- A
- D
- B
- B
- B
- C
- A
- C
- A
- D
- B
- C
- A
Hints and explainations:-
Biology
1. Hot-spots are areas of megadiversity which are also the most threatened ones. The number of hot-spots is 25, of which two are present
in India namely Western Ghats and North-East Himalayas.
In India, Indo-Gangetic Plain, Eastern Ghats and Aravali Hills are not considered as hot-spot of
biodiversity.
2. Dachigam National Park located near Dal Lake in Jammu and Kashmir is known for conservation of endangered Hangul or Kashmir stag.
- Ethnology:- study of ethnic people
Eugenics: meaning “well born” or “good birth” relates to measures to select/change/improve/discard a genotype/phenotype of an offspring in order to improve the line.
Euthenics: Measures to improve the environment in order to improve health, appearance, behavior, or well-being of society.
Euphenics: Measures to improve the individual or phenotype (the body) by biological or medical means.
- Gene flow does occur between the populations of a species
- The members of same species can reproduce freely with each other.
- Foetal Hb has different composition than that of an adult Hb
- K+ ions enter guard cells. As a result water move in due to osmotic effect that makes guard cell become turgid and hence stomata open.
- In plants, Boron is required for calcium uptake, carbohydrate metabolism and germination of pollen tube.
- A layer of sterile cells is absent in algae
- Living fosiils are extinct fossil species.
- Xylum in cycas mainly consists of tracheids
- homologous organs are similar in structure but different in function
- During cleavage, nucleo-cytoplasmic ratio increases, size of blastomeres/cells decreases, more oxygen consumption and mitotic divisions take place.
- Archenteron is gut of embryo
50 Palaeontology is study of fossils.
- Schizogony takes place in man
55 ponds and puddles are breeding grounds for mosquito. Mosquito is an intermediate host ofPlasmodium .
- bacteria and blue-green algae are prokaryotes that do not have membrane bound cell organelles
- Euchromatic regions replicate first
86 parietal cells produce HCl
Tags: NEET Practice Test Paper 1 Zoology by TEACHING CARE online tuition and coaching classes