set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

In rainy season, door gets swelled due to

a) diffusion

b) transpiration

c) imbibition

d) respiration

Question : 2

Thoracic cage is made up of

a) ribs, diaphragm & sternum

b) ribs, vertebral column & diaphragm

c) vertebral column, diaphragm & sternum

d) ribs, vertebral column & sternum

Question : 3

Which tissue does lack blood supply and heals slowly ?

a) muscle

b) nervous

c) cartilage

d) bone

Question : 4

The hormone responsible for phototropism is

a) Abscisic acid

b) Auxin

c) Ethylene

d) Gibberellic acid

Question : 5

Which one among the following statements is correct?

a) All veins carry oxygenated blood

b) All arteries carry oxygenated blood

c) Except the pulmonary artery, all other arteries carry oxygenated blood

d) Except the pulmonary vein, all other veins carry oxygenated blood

Question : 6

Double fertilization means

a) fusion of two polar bodies

b) a male gamete fused with egg and second male gamete fused with secondary nucleus

c) fusion of male gametes and ovum

d) all the above