Biology Multiple Choice Questions Set – 7

Question 1.

Purification of blood takes place in

A. Lungs
B. Heart
C. Kidney
D. Liver

A. Lungs

Question 2.

Main function of white blood corpuscles is

A. Transport of CO2
B. Transport of oxygen
C. To produce immune system of body
D. None of the above

C. To produce immune system of body

Question 3.

Which of the following blood cells carry oxygen?

A. W.B.Cs
B. Platelets
C. R.B.Cs
D. All of the above

C. R.B.Cs

Question 4.

Red colour of blood is due to presence of

A. Plasma
B. Hemoglobin

B. Hemoglobin

Question 5.

Fully mature human RBCs has

A. A nucleus
B. No nucleus
C. Nucleus may or may not be present
D. None of the above

B. No nucleus

Question 6.

What is the average Life span of RBC?

A. 120 days
B. 99 days
C. 101 days
D. 111 days


Question 7.

In human body lymphocytes are formed in

A. Liver
B. Bone marrow
C. Pancreas
D. Spleen

B. Bone marrow

Question 8.

Average life span of human R.B.C is

A. 100 days
B. 90 days
C. 120 days
D. None of these

C. 120 days

Question 9.

Which of the following blood group is universal donor?

A. B
B. O
C. A

B. O

Question 10.

Red blood corpuscles is also known as

A. Erythrocytes
B. Leucocytes
C. Thrombocytes
D. Esinophils

A. Erythrocytes

Question 11.

Which statement about capillaries is correct?

A. Their walls are covered with cilia
B. They warm and humidify inhaled air
C. Their walls are only one cell thick
D. They move mucus through the lungs

C. Their walls are only one cell thick

Question 12.

With which of the following body organ is ‘pace-maker’ associated?

A. Liver
B. Brain
C. Heart

C. Heart

Question 13.

Human heart is made up of

A. Nervous tissue
B. Cardiac muscle
C. Nonstriated muscle
D. Connective tissue

B. Cardiac muscle

Question 14.

Blood group which have no antigen

A. A
B. B
D. O

D. O

Question 15.

The grouping of blood is based on substances called

A. Antibodies
B. Antigens
C. Antitoxin
D. Enzymes

B. Antigens

Question 16.

Which of the following blood group is called universal donor ?

A. A+
B. B+
C. O-
D. AB+

C. O-

Question 17.

Antigens ‘A’ and ‘B’ are absent in persons belong to blood group

A. ‘O’
C. ‘B’
D. ‘AB’

A. ‘O’

Question 18.

The normal blood pressure in human beings is

A. 80/120
B. 120/80
C. 80/110
D. 110/90

B. 120/80

Question 19.

Which blood group is universal acceptor?

A. O+
B. O-
C. AB-
D. AB+

D. AB+

Question 20.

What carries blood away from the heart?

A. Arteries
B. Veins
C. Both A & B
D. None

A. Arteries

Biology GK Questions All SET MCQ-

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