October 9, 2014

Quiz 5- Biology-General Studies: General Knowledge Question & Answers

41 Q) Dual Energy X-ray Absorption tiometry (DEXA) is used to measure

(a) spread of solid tumour
(b) bone density
(c) ulcerous growth in stomach
(d) extent of brain haemorrhage

42 Q) The virus was discovered by

(a) Urey
(b) Haeckel
(c) Smith
(d) Ivanowski

43 Q) "Consider the following statements in relation to plant tissue chlorenchyma. 
I. It is formed by the palisade and spongy mesophyll. 
II. It is a form of parenchyma, which contains chloroplasts. 
III. It serves to transport organic solutes made by photosynthesis. 
IV. It is a thin transport layer, which has chiefly a protective function. Which of the statements given above is/are correct?"

(a) I and II
(b) I, II and III
(c) II and IV
(d) Only I

44 Q) "Assertion (A) Vitamin K is given for the blood coagulation. 
Reason (R) It helps in the synthesis of fibrinogen in liver."

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

45 Q) Organisms free floating on the surface of water body are

(a) benthos
(b) nektons
(c) neustons
(d) phytoplanktons

46 Q) Ecdysone is secreted by

(a) moluscs
(b) birds
(c) reptiles
(d) insects

47 Q) The fossil of Arxhaepteryx represents the evidence of origin of

(a) birds from reptiles
(b) mammals from reptiles
(c) reptiles from amphibians
(d) mammals from birds

48 Q) In sharks, there are

(a) 4 pairs of gills covered by operculum
(b) 4 pairs of gills without operculum.
(c) 5 7 pairs of gills with operculum.
(d) 5 7 pairs of gills without operculum

49 Q) The colour of the bile pigment is largely derived from

(a) undigested food
(b) breakdown of haemoglobin from worn-out cells
(c) xanthophylls
(d) bile salts

50 Q) Which of the following island is known as "Biological paradise"?

(a) Madagascar island
(b) Sandwich island
(c) St Helena island
(d) Galapagos island
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