Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Platelets are produced from which of the following cells?

A. Erythrocytes
B. Thrombocytes
C. Megakaryocytes
D. Lymphocytes
Answer» D. Lymphocytes
2.

Lymphocytes constitute how much per cent of the total WBCs?

A. 10-15%
B. 20-25%
C. 40-50%
D. 56%
Answer» C. 40-50%
3.

Which of the following WBCs are involved in allergic reactions?

A. Basophils
B. Eosinophils
C. Neutrophils
D. Monocytes
Answer» C. Neutrophils
4.

Which of the following is not secreted by basophils?

A. Histamine
B. Serotonin
C. Heparin
D. Serum
Answer» E.
5.

Which of the following are the most abundant in WBCs?

A. Neutrophils
B. Basophils
C. Eosinophils
D. Lymphocytes
Answer» B. Basophils
6.

WBCs are characterised into 4 main categories.

A. True
B. False
Answer» C.
7.

What is the colour of leucocytes?

A. White
B. Black
C. Red
D. Colourless
Answer» E.
8.

What is the average life span of RBCs?

A. 120 seconds
B. 120 hours
C. 120 days
D. 120 weeks
Answer» D. 120 weeks
9.

RBCs are formed in the thymus.

A. True
B. False
Answer» C.
10.

Which of the following is not a formed element?

A. Erythrocytes
B. Leucocytes
C. Platelets
D. Lymph
Answer» E.
11.

What is plasma without clotting factors known as?

A. Blood
B. Serum
C. Lymph
D. Fluid
Answer» C. Lymph
12.

Which of the following are needed for clotting of blood?

A. Fibrinogen
B. Albumin
C. Globulin
D. Magnesium ions
Answer» B. Albumin
13.

How much percentage of plasma is present in the blood?

A. 35%
B. 45%
C. 50%
D. 55%
Answer» E.
14.

Which of the following is absent on blood?

A. Fluid matrix
B. Plasma
C. Fibroblast
D. Formed elements
Answer» D. Formed elements
15.

Which of the following is the most commonly used body fluid?

A. Blood
B. Plasma
C. Lymph
D. Serum
Answer» B. Plasma