physiology of plants, humans and animals - Category wise Question and Answer Practice Test with Solutions

Question : 1

Cavity or lumen is narrow in

a) Parenchyma

b) Sclerenchyma

c) Collenchyma

d) Tracheids

Question : 2

In which of the following reptiles four chambered heart is present ?

a) Snake

b) Lizard

c) Scorpion

d) Crocodile

Question : 3

Bark includes

a) tissues inside xylem

b) all the tissue outside vascular cambium

c) tissues inside the vascular cambium

d) all the dead tissues outside vascular cambium

Question : 4

Which of the followings organelles having single membrane bound structures ?

1. Endoplasmic reticulum
2. Golgi bodies
3. Mitochondria
4. Plastids

a) 3 and 4

b) 2 and 4

c) 1 and 2

d) 1, 2, 3 and 4

Question : 5 [NDA]

Biological catalysts in living organisms are known as

a) vitamins

b) hormones

c) steroids

d) enzymes