WBJEE - 2011 - Biology
1. Glucose and amino acids are reabosorbed in the
(A) proximal tubule (B) distal tubule (C) collecting duct (D) loop of Henle
2. The amount of CSF in the cranial cavity
(A) 500 ml (B) 140 ml (C) 1 litre (D) 1.5 ml
3. Which one is imino acid ?
(A) Pepsin (B) Proline (C) Cysteine (D) Renin
4. The main difference between Gram positive and Gram negative bacteria is
(A) Cell membrane (B) Cell wall (C) Ribosome (D) Mitochondria
5. ACTH is secreted from
(A) Adrenal cortex (B) Pituitary (C) Adrenal Medulla (D) Thyroid
6. Which of the following is the correct pathway for propagation of cardiac impulse ?
(A) SA node → AV node → Bundle of His → Purkinje fibers
(B) AV node → Bundle of His → SA node → Purkinje fibers
(C) SA node → Purkinje fibers → AV node → Bundle of His
(D) Purkinje fibers → AV node → SA node → Bundle of His
7. Inner surface of the bronchi, bronchioles and fallopian tubes are lined by
(A) cubical epithelium (B) columnar epithelium (C) squamous epithelium (D) ciliated epithelium
8. Electric potential of the brain is recorded by
(A) CT Scan (B) Sphygmomanometer (C) ECG (D) EEG
9. Which of the following is related to humoral immunity ?
(A) T-lymphocyte (B) B-lymphocyte (C) I-lymphocyte (D) P-lymphocyte
10. Fertilization occur in
(A) Uterus (B) Ureter (C) Vagina (D) Fallopian tube
11. The Gastrin is secreted from
(A) Intestine (B) Stomach (C) Pancreas (D) Rectum
12. The cause of cretinism is
(A) Hypothyroidism (B) Hypoparathyroidism (C) Hyperthyroidism (D) Hyperparathyroidism
13. Which of the following is a minerelocorticoid ?
(A) Testosterone (B) Progesterone (C) Adrenalin (D) Aldosterone
14. The part of the brain where the centre for hunger and thirst is located is
(A) Cerebrum (B) Hypothalamus (C) Cerebellum (D) Medulla Oblongata
15. The reflex arc, which is made of two neurones is known as
(A) Monosynaptic reflex arc (B) Disynaptic reflex arc
(C) Polysynaptic refles arc (D) Asynaptic reflex arc
16. The lactase hydrolyzes lactose into
(A) Glucose (B) Glucose and galactose (C) Fructose (D) Glucose and fructose
17. In 24 hours, total glomerular filtrate formed in human kidney is
(A) 1.7 litres (B) 7 litres (C) 17 litres (D) 170 litres
18. When the oxygen supply to the tissue is inadequate, the condition is
(A) Dyspnea (B) Hypoxia (C) Asphyxia (D) Apnea
19. Which one of the following is not a second messenger in hormone action ?
(A) Calcium (B) Sodium (C) cAMP (D) cGMP
20. The name of the pace maker of the heart is
(A) Lymph node (B) S.A. node (C) Juxtaglumerular apparatus (D) Semilunar valve
21. What is a genophore ?
(A) DNA in prokaryotes (B) DNA and RNA in prokaryotes
(C) DNA and protein in prokaryotes (D) RNA in prokaryotes
22. Example of a typical homopolysaccharide is
(A) Ligin (B) Suberin (C) Inulin (D) Starch
23. Who wrote the famous book ‘Origin of Species’ ?
(A) Lamarck (B) Darwin (C) De Vries (D) Mendel
24. Polyploid derived from two different species is called
(A) Autopolyploid (B) Triploid (C) Allopolyploid (D) Monoploid
25. Electrons used in Electron Microscope are of the wavelength
(A) 0.05 Å (B) 0.15 Å (C) 0.25 Å (D) 0.30 Å
26. Biolistic technique is used in
(A) Tissue culture process (B) Gene transfer process
(C) Hybridization process (D) Germplasm conservation process
27. Example of water soluble plant pigment is
(A) Chlorophyll-a (B) Chlorophyll-b (C) Anthocyanin (D) Xanthophyll
28. Structural element of Chromatin is
(A) Histone (B) Acid protein and DNA (C) Nuclear matrix (D) Nucleosomes
29. Inulin is a polymer of
(A) Glucose (B) Galactose (C) Fructose (D) Arabinose
30. Mannitol is
(A) Amino Acid (B) Amino alcohol (C) Sugar alcohol (D) Sugar acid
31. A flower which can be divided into two equal halves by only one plane is
(A) Zygomorphic (B) Actinomorphic (C) Regular (D) Perfect
32. Pieces of plant tissue used in tissue culture is called
(A) Explant (B) Somaclone (C) Inoculant (D) Clone
33. VAM is
(A) Symbiotic bacteria (B) Saprophytic bacteria (C) Saprophytic fungi (D) Symbiotic fungi
34. Ovule integument gets transformed into
(A) seed (B) fruit wall (C) seed coat (D) cotyledons
35. Acid rain is caused by
(A) NO<sub>2</sub> (B) SO<sub>2</sub> (C) SO<sub>3</sub> (D) CO<sub>2</sub>
36. Which one of the following bacterium is used for production of transgenic plants
(A) Escherichia coli (B) Bacillus thuringiensis (C) Staphylococcus aureus (D) Agrobacterium tumefaciens
37. A plant cell becomes turgid due to
(A) Plasmolysis (B) Exosmosis (C) Endosmosis (D) Electrolysis
38. Restriction enzymes are used to cut
(A) Single stranded RNA (B) Double stranded DNA (C) Single stranded DNA (D) Double stranded RNA
39. Spindle fibre is made up of
(A) Humulin (B) Intermediate filament (C) Flagellin (D) Tubulin
40. Edible part of Mushroom is
(A) Basidiocarp (B) Primary mycelium (C) Fungal hyphae (D) Basidiospores
41. Calcium level decreases in the blood due to hyposecretion of
(A) Parathyroid hormone (B) Calcitonin (C) Thyroxine (D) Adrenaline
42. Kupffer’s cells are
(A) Phagocytic (B) Actin (C) Myosin (D) Fibrin
43. Which centre is stimulated during increase in body temperature
(A) Anterior hypothalamus (B) Posterior hypothalamus (C) Limbic system (D) Red nucleus
44. Name the following having oxygen storing capacity
(A) Myoglobin (B) Prophase II (C) Anaphase I (D) Metaphase II
45. Longest phase of meiosis
(A) Prophase I (B) Prophase II (C) Anaphase I (D) Metaphase II
46. Tetany is caused by
(A) Hyperparathyroidism (B) Hypoparathyroidism (C) Hyperthyroidism (D) Hypothyroidism
47. Which the following is a gastrointestine hormone ?
(A) Prolactin (B) Enterokinase (C) GH (D) FSH
48. Name the hormone that has no role in menstruation.
(A) LH (B) FSH (C) GH (D) TSH
49. Which of the following substances can cure Parkinson’s disease ?
(A) GABA (B) Acetylcholine (C) Dopamine (D) Glutamic acid
50. Movement of tongue muscle is controlled by
(A) facial nerve (B) trigeminal nerve (C) hypoglossal nerve (D) vagus nerve
51. Which function will be lost due to damage of occipital lobe ?
(A) Hearing (B) Speech (C) Vision (D) Memory
52. Meissner’s corpuscles occur in
(A) Brain (B) Nerve cells (C) Skin (D) Tongue
53. Osteomalacia is a deficiency disease of
(A) Infants due to protein energy malnutrition (B) Adults due ot protein energy malnutrition
(C) Adults due to Vitamin D deficiency (D) Infants due to Vitamin K deficiency
54. The gene of sickle cell anaemia is inherited by
(A) Blood cells (B) Bone cells (C) Sex chromosomes (D) Autosomes
55. Ptyalin is inactivated by a component of gastric juice known as
(A) Pepsin (B) Mucus (C) Rennin (D) HCl
56. Which one of the following human cells do not contain mitochondria ?
(A) Nerve cell (B) Red blood cell (C) Liver cell (D) White blood cell
57. In which stage of the first meiotic division two sister chromatids are formed ?
(A) Leptotene (B) Zygotene (C) Pachytene (D) Diplotene
58. Which one of the following triplet codons is a chain termination codon ?
(A) UGU (B) AAU (C) UUG (D) UAG
59. How many pairs of contrasting characters in pea pod were chosen by Mendel ?
(A) 3 (B) 5 (C) 7 (D) 9
60. If a cross between two individuals produces offsprings with 50% dominant character (A) and 50% recessive character (a) the genotype of parents are
(A) Aa × Aa (B) Aa × aa (C) AA × aa (D) AA × Aa
61. Structural lipids of cell membrane
(A) Simple lipid (B) Chromolipids (C) Steroid (D) Phospholipids
62. Which one of the following is polysaccharide ?
(A) Glycogen (B) Sucrose (C) Lactose (D) Maltose
63. What will be the codons in m-RNA if the DNA codes are ATG-CAG ?
(A) TAC – GTC (B) UAC – GUC (C) UCA – TUA (D) TCA – GTC
64. Which of the following species is restricted to a specific area ?
(A) Sibling species (B) Allopatric species (C) Sympatric species (D) Endemic species
65. Which of the following is NOT correctly matched ?
(A) Sycon — Canal system (B) Star fish — Radial symmetry (C) Ascaris — Flame cell (D) Prawn — Haemocoel
66. Which one of the following animal phyla does not possess a coelom ?
(A) Platyhelminthes (B) Annelida (C) Mollusca (D) Echinodermata
67. Cardiac muscles are
(A) Striated and voluntary (B) Striated and involuntary (C) Smooth and voluntary (D) Smooth and involuntary
68. Which one of the following immunoglobulins is found as pentamer ?
(A) IgG (B) IgM (C) IgA (D) IgE
69. Which one of the following cells is not a phagocytic cell ?
(A) Macrophage (B) Monocyte (C) Neutrophil (D) Basophil
70. Which one of the following is the most priitive ancestor of man ?
(A) Homo habilis (B) Australopithecus (C) Rampithecus punjabicus (D) Homo neanderthalensis
71. A female Anopheles mosquito can be recognized by
(A) Proboscis and palpi are long and more or less of equal length
(B) Proboscis long and palpi short
(C) Proboscis short and palpi long
(D) Both proboscis and palpi are short
72. The anterior V-spot in microfilaria of Wuchereria represents
(A) Nerve ring (B) Cervical papilla (C) Excretory system (D) Reproductive
73. In a population, unrestricted reproductive capacity is called
(A) Biotic potential (B) Fertility (C) Carrying capacity (D) Birth rate
74. When the two ecosystems overlap each other, the area is called
(A) Habitat (B) Niche (C) Ecotone (D) Ecotype
75. Pyramid of energy in ecosystems is
(A) Always upright (B) Always inverted (C) Mostly upright (D) Mostly inverted
76. Which one of the following is mainly responsible for green house effect ?
(A) SO<sub>2</sub> (B) CO<sub>2</sub> (C) CO (D) O<sub>2</sub>
77. Which one of the following is an exotic carp species ?
(A) Barbus stigma (B) Cyprinus carpio (C) Labeo bata (D) Cirrhinus mrigala
78. Which of following two hormones are essential for induced breeding of fishes ?
(A) TSH and ACTH (B) Oestrogen and progesterone (C) FSH and LH (D) Vassopressin and oxytocin
79. Which stage of malarial parasite is infective to man ?
(A) Gametocyte (B) Merozoite (C) Cryptomerozoite (D) Sporozoite
80. The scientific name of the moth which produce tasar is
(A) Bombyx mori (B) Antheraea mylitta (C) Antheraea assamensis (D) Philosomia ricini
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