Question

Identify the functions of blood from the following.

• A. (i), (iv)
• B. (ii), (iii)
• C. (iii), (iv)
• D. (i), (ii), (iii), (iv)

Answer 1

The correct option is D

(i), (ii), (iii), (iv)

The correct option is D:
Explanation of the correct option:

1. Transportation of nutrients, regulation of body temperature, exchange of gases, and protection against infections are the key activities of blood.
2. It helps supply nutrients like amino acids, fatty acids, and glucose to cells.
3. Body temperature is controlled by the blood.
4. The blood absorbs and transmits heat throughout the body, and it serves to maintain homeostasis by releasing or storing heat.
5. Carbon dioxide, nitrogen, and oxygen are the three primary gases that enter and exit the body via breath.
6. The act of obtaining oxygen and releasing carbon dioxide from the blood is known as gas exchange.
7. Certain components in blood have the capacity to protect against microorganisms that cause disease.
8. Infections, foreign objects, and aberrant cells are all combated by white blood cells.
9. Platelets in the blood help the blood to clot (coagulation) - platelets cluster together to form a clot when there is bleeding.

Final answer: The functions of blood include transportation of nutrients, regulation of body temperature, exchange of gases, and protection against infections.