set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

Oxygen transportation in a human body takes place through.

1. Blood
2. Lungs
3. Tissue

a) 3, 1, 2

b) 2, 1, 3

c) 1, 2, 3

d) 1, 3, 2

Question : 2

Carbon monoxide poisoning affects mainly which one of the following?

a) Liver functioning

b) Kidney functioning

c) Digestive activity

d) Oxygen carrying capacity of blood

Question : 3

Read the following statements in connection with red blood corpuscles and with the help, the code given below find out the correct answer.

1. They have iron.
2. They provide red colour to the blood.
3. They provide immunity against certain diseases.
4. They are the carrier of oxygen in the blood.

a) 2, 3 and 4

b) 1, 2 and 4

c) 1, 2 and 3

d) 1, 2, 3 and 4

Question : 4

Average blood pressure of a human is

a) 20/80

b) 60/140

c) 60/100

d) 120/80

Question : 5

In which of the following creatures haemoglobin is dissolved in protoplasm?

a) Fish

b) Human

c) Frog

d) Earthworm

Question : 6

When a person becomes older, his blood pressure generally

a) Increases

b) Remains the same

c) Decreases

d) Varies widely