Question

Serum is

• A. Blood without corpuscles
• B. Plasma without clotting factors
• C. Blood without RBCs
• D. Blood without plasma

Answer 1

The correct option is B

Plasma without clotting factors

The correct option is B.

Explanation of correct option:

1. The serum is the straw-colored fluid that is left after the clotting of blood.
2. It lacks fibrinogen and other clotting factors.
3. Hence, serum cannot coagulate blood.

Explanation of incorrect options:

Option A:

1. Blood consists of two components- plasma and blood cells or corpuscles.
2. Blood without corpuscles is called plasma.

Option C:

1. Blood consists of plasma and blood cells or corpuscle.
2. RBC is a corpuscle.
3. It aids in transporting oxygen from lungs to various parts of the body.

Option D:

Without plasma, only corpuscle remains in the blood.

Final answer: Serum is plasma without clotting factors.