Question

Which organ of the body helps in both respiration and purification of blood?

• A. Kidney
• B. Stomach
• C. Lungs
• D. All of these

Hint:

The lungs are the key organ responsible for both respiration (oxygen exchange) and the removal of carbon dioxide from the blood.

Answer 1

The Correct Option is C

Step 1: Functions of the lungs.
The lungs play a critical role in respiration by allowing the exchange of oxygen and carbon dioxide, which is essential for breathing. The lungs also help in purifying the blood by removing carbon dioxide and adding oxygen.
Step 2: Analyzing the options.
- (A) Kidney: The kidneys help in the filtration and purification of blood but do not play a role in respiration.
- (B) Stomach: The stomach is responsible for digestion, not for respiration or blood purification.
- (C) Lungs: This is correct. The lungs are responsible for both respiration (gas exchange) and helping to purify the blood by removing carbon dioxide.
- (D) All of these: This is incorrect, as only the lungs are involved in both respiration and purification of blood.
Step 3: Conclusion.
The correct answer is (C) Lungs, as they are responsible for both respiration and purification of blood.
Final Answer: The correct answer is (C) Lungs.