Question

The kidney in human beings are a part of the system for

• A. nutrition
• B. respiration
• C. excretion
• D. transportation

Answer 1

The correct option is C

excretion

The correct option is C.

Explanation of the correct option:

• The kidney is used for the filtration of unwanted fluids in the body.
• It is used in the excretion of unwanted fluids of the body.
• So, kidneys in human beings are a part of the system where excretion is processed.

Explanation of the incorrect options:

Option A:

• Nutrition is the process through which organisms use food to support life.
• In nutrition, the process includes ingestion of food, includes ingestion of food, absorption of food, assimilation of food, biosynthesis of food, catabolism of food, and excretion of waste materials.

Option B:

• Respiration occurs when oxygen is utilized for the breakdown of sugar.
• In respiration, there is an exchange of the two gases, oxygen and carbon dioxide.

Option D:

• Transportation is the process of movement of a substance from one place to another.

Therefore, the kidneys in human beings are involved in excretion.