Question

The amount of water present in blood plasma is

• A. $60\%$
• B. $70\%$
• C. $80\%$
• D. $90\%$

Answer 1

The correct option is D

$90\%$

The correct option is D.

Explanation of correct option:

1. One half of blood is composed of red blood cells, white blood cells, and platelets which are considered a substantial part of blood, and another half is composed of water, salts, and proteins which are the fluid part of blood.
2. The fluid part of blood is known as Plasma.
3. Plasma is a straw-coloured, viscous fluid it has about $90-92\%$water and $6-8\%$proteins.
4. Hence, the amount of water present in blood plasma is $90\%$.
5. In general, plasma is referred to as the matrix of blood.
6. Plasma is composed of clotting factors, protein compounds, and serum.

Final answer: The amount of water present in blood plasma is 90%.