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February 10th, 2016, 05:00 PM
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Re: BCECE Question Papers Free Download

Hey buddy below I am giving you the Bihar Combined Entrance Competitive Examination Board (BCECEB BCECE question papers for Bio-logy


1. Glucose and amino acids are reabsorbed 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 line 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

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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 hunge and thirst is located is

A. Cerebrum B. Hypothalamus C. Cerebellum D. Medulla Oblongata

15. The reflex arc, which is made of two neurons is known as

A. Monosynsptic reflex arc B. Disynaptic reflex arc

C. Polysynaptic reflex 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. Larmarck B. Darwin C. De Vries D. Mendel

24. Polyploid derived from two different species is called

A. Autopolyploid B. Triploid C. Allopolyploid D. Monoploid

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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. Structure 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. NO2

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

B. SO2

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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. Mast cells

C. Hormone secreting D. Digestive juice secreting

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. Actin C. Myosin D. Fibrin

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 of the following is a gastro intestine 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

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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 is

A. Brain B. Nerve cells C. Skin D. Tongue

53. Osteomalacia is a deficiency disease of

A. Infants due to protein enertgy malnutrition B. Adults due to protein enertgy 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 are

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

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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 one 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 primitive 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 system

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

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76. Which one of the following is mainly responsible for green house effect ?

A. SO2

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 the 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

B. CO2

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(Each question carries two marks)

Ans. Also called cold blooded animals. Their body temperature changes according surrounding environment. These

Ans. Functions :

1. What are poikilothermic animals ?

animals are less active.

e.g. all invertebrates, fishes, amphibians, reptiles.

2. Write two functions of juxtaglomerular apparatus.

(i) Juxtaglomerular cells secretes Renin which through RAAS (Renin-Angiotensis Aldosterone System) help in

absorption of Na+

(ii) Its Macula densa cells act as chemorecptor feeding information to JG cells.

3. State two differences between red and white muscle.

from DCT and therefore increases Blood pressure.

Ans. Difference between Red & White Muscle.

Red Muscles White Muscles

Ans.

Ans. (i) Helps in Transport by active and passive processes.

i) Rich in Myoglobin. i) Less myoglobin.

ii) Mitochondria are more in number. ii) Less in number.

iii) Less sarcoplasmic reticulum. iii) More sarcoplasmic reticulum.

iv) Can carry out considerable aerobic

respiration.

v) Slow rate of contraction for long

period.

4. What is the difference between pinocytosis and phagocytosis ?

i) Bulk intake of fluid material by cell. i) Intake of solid material from outside to

ii) Vesicles formed are small. ii) Large

iii) Lysosome play no role. iii) Lysosomes are essential.

5. State four important functions of plasma membrane.

(ii) Take part in Exocytosis and Endocytosis.

6. What is bioaccumulation ?

Bioconcentration. Like in scallops maximum quantity of Zn, Cu, Cd and Cr deposited and in human beings

maximum Iodide deposieted in thyroid glands.

Phagocytosis Pinocytosis

Ans. Different types of elements and compound deposited inside the living beings. Which is called Bioaccumulation or

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Ans. When F1

Ans. Ribozymes are the RNA molecules (Non protein enzyme) that possess catalytic activity they function in RNA

Ans. The association of fungi with the roots of higher plant, is called mycorrhizae. Mycorrhizal association fround in

Ans. Hibiscus rosasinensis :

7. What is a test cross ? Why is it so named ?

genotype of dominant individual.

8. What is ribozyme ?

splicing reactions.

9. What are mycorrhizae?

conifers plant.

10. Write down the scientific name of China rose plant. Give its floral formula.

Br Epi7

progeny is crossed with recessive parent then it is called Test Cross. Test Cross helps to find out the

k(5) C5 A( )  G(5– ) 


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