MCQs on Immunity

MCQs on Immunity

1. Which of the following systems protects our body against disease-causing microbes?

(a) Immune system

(b) Digestive system

(c) Excretory system

(d) Respiratory system

Sol: (a) Immune system.

2. Which of the following immunity is present from our birth?

(a) Innate Immunity

(b) Active immunity

(c) Passive immunity

(d) Acquired immunity

Sol: (a) Innate Immunity

3. Neutrophils, basophil, lymphocytes, eosinophil and monocytes are examples of ________.

(a) Physical barrier

(b) Cellular barriers

(c) Cytokine barriers

(d) Physiological barriers

Sol: (b) Cellular barriers.

4. B-cells and T-cells are two types of cells involved in _______________.

(a) Innate Immunity

(b) Active immunity

(c) Passive immunity

(d) Acquired immunity

Sol: (d) Acquired immunity.

5. The common disorders caused by a poor immune system include ________

(a) Epidemic Diseases

(b) Deficiency diseases

(c) Autoimmune diseases

(d) None of the above

Sol: (a) Epidemic diseases.

6. Which of the following statements is true about Passive Immunity?

(a) This immunity causes reactions

(b) This immunity develops immediately

(c) This immunity lasts only for a few weeks or months

(d) All of the above.

Sol: (d) All of the above.

7. The branch of biology involved in the study of immune systems in all organisms is called_________.

(a) Botany

(b) Microbiology

(c) Immunology

(d) Biotechnology

Sol: (c) Immunology.

8. Which of the following cells is involved in cell-mediated immunity?

(a) T-cells

(b) B-cells

(c) Mast cells

(d) Both T and B cells

Sol: (a) T-cells.

9. Which of the following conveys the longest-lasting immunity to an infectious agent?

(a) Active immunity

(b) Passive immunity

(c) Both (a) and (b)

(d) None of the above

Sol: (a) Active immunity.

10. Which of the following does not act as a protecting barrier for the body surface?

(a) Skin

(b) Mucus

(c) Gastric acid

(d) Salivary amylase

Sol: (d) Salivary amylase.

11. Which of the following cells is involved in humoral immunity?

(a) T-cells

(b) B-cells

(c) Mast cells

(d) Both T and B cells

Sol: (b) B-cells.

12. Which of the following immunity is obtained during a lifetime?

(a) Innate immunity

(b) Active immunity

(c) Passive immunity

(d) Both (b) and (c)

Sol: (d) Both (b) and (c).

13. Skin, body hair, cilia, eyelashes, the respiratory tract and the gastrointestinal tract are examples of ________.

(a) Physical barrier

(b) Cellular barriers

(c) Cytokine barriers

(d) Physiological barriers

Sol: (a) Physical barrier.

14. Cells Involved In Innate Immunity are_________.

(a) Phagocytes

(b) Macrophages

(c) Natural Killer Cells

(d) All of the above

Sol: (d) All of the above.

15. Which of the following immunity is called the first line of defence?

(a) Innate Immunity

(b) Active immunity

(c) Passive immunity

(d) Acquired immunity

Sol: (a) Innate Immunity.