Question

Urea is transported by
A. Plasma
B. RBC
C. WBC
D. All of the above

Answer 1

Hint: Urea is the excretory waste product which is produced in our body and it needs to be excreted out from the body as if its accumulation takes place in body, it will have harmful effects on the metabolic activities of the body and it may affect central nervous system, circulatory system, digestion system etc.

Complete answer:
Blood is made up of two components- blood cells – RBCs, WBCs and blood platelets and the other component is blood plasma.
Plasma is also called blood plasma. It is defined as the liquid portion of the blood. Blood plasma serves as a transporting medium for the delivery of the nutrients to the various organism of the body and also for transporting all the waste products produced and derived from cellular metabolism in the body to the other organs which will either metabolize them or excrete them out from the body in one way or the other like to the kidneys, liver, and lungs.
It is also defined as the transport system for the blood cells from one place to another, and it also plays a critical role in maintaining the normal blood pressure of the body. Plasma also has another function as it helps to distribute the heat throughout the body and also to maintain the homeostasis, or biological stability in the body and also maintains acid-base balance in the blood and body.

The correct answer is (A).

Note: The functions of the blood plasma and the blood cells like red blood cells, white blood cells and platelets should be studied carefully as they all perform different and unique functions in the body.