Question Bank No: 8

1. The person with Turner's syndrome has

 a)44 Autosomes and XXY sex chromosomes
 b)44 Autosomes and XO sex chromosomes
 c)44 Autosomes and XYY sex chromosomes
 d)44 Autosomes and XXX sex chromosomes

2. Which of the following cations is required for the conversion of prothrembin in to active thrombin by thromboplastin.

 a)Fe2+
 b)Fe3+
 c)Cu2+
 d)Ca2+

3. In the Nerve cells, the reversal of the resting potential is known as depolarization. This occurs due to

 a)influx of Na+
 b)Influx of K+
 c)Influx of Ca2+ and Cl
 d)Efflux of Na+

4. The fats absorbed from the gut are transported to the blood in the form of

 a)Liposome
 b)Chemonocroris
 c)Micelles
 d)Chylomicrons

5. Which of the following is multinucleated

 a)Non- Striated muscle
 b)Renal tissue
 c)Nervous tissue
 d)Striated muscle

6. Intermediate lobe of pituitary glands secretes hormone called

 a)Antidiuretic hormone
 b)Melanocyte stimulating hormone
 c)Thyroid stimulating hormone
 d)Adrenocorticotrophic hormone

7. Memory centre, is located in this region of human brain

 a)Temporal lobe
 b)Frontal lobe
 c)Parietal lobe
 d)Occipital lobe

8. A rise in blood cholesterol may lead to a deposition of cholesterol on the wall of blood vessels. This causes the arteries to lose their elasticity and get stiffened . This is called.

 a)Hypertension
 b)Hypotension
 c)Arteriosclerosis
 d)Systolic pressure

9. Collagen and elastin are synthesized by

 a)Fibroblasts
 b)Macrophages
 c)Mast cells
 d)Adipocytes

10. The Principal action of enteropeptidase is only to activate ..... of the pancreatic juice.

 a)Amino peptidase
 b)Chymotrypsin
 c)Carboxypeptidase
 d)Trypsinogen

11. Vitamin commonly called as 'erythrocytematuration factor' is

 a)Vit. A
 b)Vit B1
 c)Vit C
 d)Vit B12

12. Sphaerosomes found in lipid storing cell originate from

 a)RER
 b)Chloroplast
 c)SER
 d)Mitochondria

13. Plastids that store starch are called

 a)Elaioplast
 b)Aleuroplast
 c)Chloroplast
 d)Amyloplast

14. A plant pigment analogous to haemoglobin is seen in

 a)leaf base of pea
 b)Seeds of legume
 c)Rhizobium
 d)Root modules of legumes

15. Buoyancy of Azolla pinnata is because of

 a)Fibrous root
 b)Seminal root
 c)Aerenchyma
 d)Symbiotic association

16. The mRNA transcripts for AAGCCA TGT will be

 a)UUCGGUACA
 b)TTCGGTACCA
 c)GGACCTACA
 d)UGUACCGAA

17. A parasitic green alga in the following is

 a)Gracillaria
 b)Cephaleuros
 c)Sargassum
 d)Nostoc

18. Organisms commonly called "Jewels of the plant kingdom" are

 a)Euglena
 b)Riccia
 c)Parmelia
 d)Diatom

19. The chemical used in protoplast fusion in somatic hybridization is

 a)PEG
 b)Cellulase
 c)Pectinase
 d)GA3

20. Root- knot of Brinjal is caused by

 a)Virus
 b)Bacteria
 c)Fungi
 d)Nematode

21. The bending of hairs of venusfly trap over insect is

 a)Photonastic
 b)Selsmonastic
 c)Thigmonastic
 d)Chemonastic

22. Plant hormone involved in mobilization of food materials in germinating seeds is

 a)ABA
 b)Auxin
 c)Cytokinin
 d)gibberellin

23. The type of flowers characteristic of monocot is

 a)Pentamerous
 b)Tetramerous
 c)Trimerous
 d)Dimerous

24. Suckers are

 a)Aerial stem modification
 b)Sub aerial stem modification
 c)root modification
 d)Leaf modification

25. Gynobasic style is the characterstic feature of the family

 a)Solanaceae
 b)Labiatae
 c)Malvaceae
 d)Compostiae

26. A plant with both male and female flowers are called.

 a)Unisexual
 b)Monoecious
 c)Dioecious
 d)Bisexual

27. Perianth of poaceae is called.

 a)Lemma
 b)Palaea
 c)Glume
 d)Lodicule

28. The stem is jointed with solid nodes and hollow internodes are called

 a)Culm
 b)Caudex
 c)Scape
 d)Corm

29. Vegetative propagation by leaves occur in

 a)Oxallis
 b)Coleus
 c)Wood sorrel
 d)Begonia

30. Plant which live in saline habitat is

 a)Psamophyte
 b)Xerophyte
 c)Halophyte
 d)Lithophyte

31. The type of fruit in Jack fruit is

 a)Drupe
 b)Berry
 c)Capsule
 d)Sorosis

32. Largest fruit is seen in the plant

 a)Wolffia
 b)Rafflesis
 c)Zostera
 d)Lodoicea

33. Which of the following cell organelle is involved in mechanical suppot, protein synthesis and enzyme transport

 a)Mitochondria
 b)E R
 c)Microsome
 d)Dictyosome

34. Spindle fibres of mitotic cells are made of

 a)Keratin
 b)Myosin
 c)Actin
 d)Tubulin

35. Type of wood formed during spring season is

 a)Autumn wood
 b)Late wood
 c)Early wood
 d)Sap wood

36. Histogen theory was proposed by

 a)Hanstein
 b)Schump
 c)Schmidt
 d)Esman

37. Stele without pith at the centre is called

 a)Siphonostele
 b)Solenostele
 c)Dictyostele
 d)Protostele

38. Smallest pteridophyte is

 a)Azolla
 b)Rhynia
 c)Isoetus
 d)Nephrolepis

39. The technique by which amount of DNA, RNA and protein can be known at a time is called

 a)Auto radiography
 b)Tissue culture
 c)Cellular fractioning
 d)Phase contrast microscopy

40. The recombinant product used in the treatment of pathogenic viral infection is

 a)Humulin
 b)Hirudin
 c)Interleukin
 d)Interferon

41. Conversion of Pyruvic acid to Acetyl -Co A takes place during respiration in

 a)Cytoplasm
 b)Mitochondrial matrix
 c)Outer mitochondrial membrane
 d)Inner mitochondrial layer

42. Which of the following is called "Chemical weed"

 a)Ozone
 b)Fog
 c)Co
 d)Smog

43. In floating respiration substrate will be

 a)Protein
 b)Fat
 c)Organic acid
 d)Carbohydrate

44. If a flower has tetradynamous stamens and bicarpellary syncarpous cuperior ovary with a parictal type of placentation, the number of locules may be

 a)3
 b)4
 c)6
 d)1

45. The ratio of energy in biomass production, between two trophic levels reveals

 a)Ecological efficiency
 b)Photosyntehtic efficiency
 c)Net production efficiency
 d)Assimilatory efficiency

46. The chemical which is found rich in the plant Dunaniella is

 a)Glycerol
 b)Calmodulin
 c)Protein
 d)Sorbitol

47. In the marine ecosystem the most important limiting nutrient factor is

 a)Oxygen
 b)Carbon
 c)Nitrogen
 d)Silicon

48. A set of population connected by dispersing individual is called.

 a)Expanding population
 b)Stable population
 c)Meta population
 d)Declining population

49. The idea that "Plants purify the air" first came from

 a)Priestly
 b)Van Niel
 c)Ingen house
 d)Sachs

50. Lecithin is

 a)Amino acid
 b)Vitamin
 c)Lipid
 d)enzymes