Question

Why is it important for blood plasma to contain proteins?

a. to keep water in the plasma
b. to remove water from the plasma
c. to remove salts from the plasma
d. to keep salts in the plasma

Answer 1

To keep water in the plasma

Step-by-step explanation:

Plasma contains proteins that help blood to clot, transport substances through the blood, and perform other functions. Blood plasma also contains glucose and other dissolved nutrients. Blood is prevented from clotting in the blood vessels by their smoothness, and the finely tuned balance of clotting factors.

Answer 2

a. to keep water in the plasma

Step-by-step explanation:

Albumin, fibrinogen, and globulins are two of the three major types of plasma protein found in blood plasma. Apart from other functions, plasma proteins, specifically albumin serves to maintain the osmolarity of the blood and thereby helps retain water in the blood plasma.

Osmolarity refers to the total molarity of the dissolved substances in the blood that can not pass through the walls of blood vessels. If the osmolarity becomes too low, the blood loses water to the tissues.

To prevent it, proteins, electrolytes, etc. are present in the blood plasma that prevent the loss of water from the blood to the tissues by their osmotic effect.