The Plasma Proteins in Humans

Question

The plasma proteins in humans
A) maintain the blood's osmotic pressure.
B) transport water-soluble lipids.
C) carry out gas exchange.
D) undergo aerobic metabolism.
E) transport oxygen.

Accepted Answer

Plasma proteins play a crucial role in maintaining the blood's osmotic pressure, which helps regulate the movement of fluids between blood vessels and surrounding tissues. This contributes to maintaining appropriate levels of hydration and preventing swelling or edema.

Answer: B
 Plasma proteins do not transport water-soluble lipids. They are mainly involved in maintaining blood osmotic pressure, transporting various substances such as hormones, minerals, and waste products, and aiding in blood clotting and immune function.

Answer: C
 Plasma proteins do not carry out gas exchange. This function is mainly carried out by red blood cells, which contain hemoglobin that binds with oxygen and carbon dioxide.

Answer: D
 Plasma proteins do not undergo aerobic metabolism. They are synthesized by the liver and released into the bloodstream, where they perform various functions.

Answer: E
 Plasma proteins do not transport oxygen. This function is mainly carried out by red blood cells, which contain hemoglobin that binds with oxygen and transports it to various tissues in the body.