set 5 MCQ Questions & Answers Detailed Explanation

Question : 1

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 : 2

Which of the following element is a constituent of protein ?

a) Potassium

b) Lead

c) Sulphur

d) Phosphorus

Question : 3

The process of formation of blood corpuscles is called

a) heamolysis

b) haemopoiesis

c) heamozoin

d) None of these

Question : 4

A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood.What was the blood group of the donor?

a) Blood group AB

b) Blood group B

c) Blood group O

d) Blood group A

Question : 5

Root hairs develop from

a) region of elongation

b) region of maturation

c) region of meristematic activity

d) root cap

Question : 6

Study the following statements :

1. The term ‘Cell’ was first coined by Robert Hooke.
2. Plant cells are generally without lysosomes.
3. Cell wall present only in animal cells.

a) 2 and 3

b) 1, 2 and 3

c) 1 and 2

d) Only 1