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

Question : 21

The toxic effect of CO is due to its greater affinity for haemoglobin as compared to O₂ approximately by

a) 20 times

b) 2 times

c) 200 times

d) 1000 times

Question : 22

Which of the following element is a constituent of protein ?

a) Potassium

b) Lead

c) Sulphur

d) Phosphorus

Question : 23

The process of formation of blood corpuscles is called

a) heamolysis

b) haemopoiesis

c) heamozoin

d) None of these

Question : 24

The muscles in stomach are.

a) involuntary

b) voluntary

c) Cardior

d) None of the above

Question : 25

Which of the following tissues has dead cells?

a) Sclerenchyma

b) Parenchyma

c) Collenchyma

d) Epithelial tissue