Question

Urea is transported through
A. RBCs
B. WBCs
C. Plasma
D. Lymph

Answer 1

As we know that urea is excretory waste which is produced in our body and it is necessary to be excreted out from the body because its accumulation may cause harmful effects on metabolic activities. It may affect the digestive system, circulatory system, excretory system, central nervous system, etc.

Complete answer:
Blood is made up of the following components:- 1. Blood cells (solid components) such as RBCs, WBCs, and platelets, 2. Blood plasma is a liquid portion and it plays a very important role in transportation.
Here, option (A) RBCs- They are major components and it has hemoglobin and it carries oxygen and carbon dioxide to the body parts.
Option (B) WBCs- They are immune cells. They play a very important role in maintaining body immunity; they identify the foreign particle and protect the body from disease causing organisms.
Option (C) Plasma- It transports nutrients which are produced in the body to different body parts, It also helps in maintaining the blood pressure and also collects waste products produced during metabolism and are excreted out of the body. So, urea is also excreted out of the body through plasma.
Option (D) Lymph- It protects the body against disease and transports hormones, nutrients, etc. to the body parts.

Thus, the correct answer is option(C) i.e. Plasma because it helps in transportation or excretion of urea.

Note: Blood is a major component of the body and it has a major role in transportation of several components as well as protection of the body against foreign particles. It is very important to eliminate urea from the body. If urea is not excreted out from the body then it leads to increase in the level of acid in blood.