All of the following organs help in excretion except :a)Liverb)Lungsc)Heartd)SkinCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

The function of heart is different from the rest options in a way that heart is an organ that pumps blood throughout
the body tissues and removing carbon dioxide and other wastes. And hence does not helps in excretion.

Answer

The skin has sweat glands that excrete perspiration (salt, water, and nitrogenous wastes) through its pores....
Lungs help in removing carbon dioxide from the body which is the metabolic waste during respiration....
Liver excretes bile, which contains bile pigments..... Heart is only helps to circulate blood...Thus, option C is right ans..

Answer

The correct answer is option 'C' - Heart.

Explanation:

Excretion is the process of eliminating waste products from the body. It involves the removal of metabolic waste products, toxins, and excess substances from the body to maintain homeostasis. Several organs participate in the excretory processes, but the heart is not directly involved in excretion.

Let's discuss the organs involved in excretion:

1. Liver:
The liver is the largest internal organ in the human body and performs various functions, including detoxification and the production of bile. It plays a crucial role in the excretion of waste products. The liver processes and removes toxins and metabolic waste products from the blood, converting them into less harmful substances that can be eliminated by other excretory organs.

2. Lungs:
The lungs are primarily responsible for the exchange of gases, but they also play a role in excretion. During respiration, carbon dioxide, a waste product of cellular respiration, is expelled from the body through exhalation. The lungs help remove this metabolic waste gas from the bloodstream.

3. Skin:
The skin is the largest organ of the human body and has multiple functions, including excretion. Through sweat glands, the skin excretes water, electrolytes, and certain waste products such as urea and lactic acid. Sweating helps maintain body temperature and eliminates waste substances.

4. Kidneys:
The kidneys are the main excretory organs of the body. They filter waste products and excess substances from the bloodstream, producing urine. The urine contains metabolic waste products, excess water, electrolytes, and other substances that need to be eliminated from the body. The kidneys also play a vital role in maintaining the balance of water, electrolytes, and pH levels in the body.

Conclusion:
While the liver, lungs, skin, and kidneys all contribute to the excretory processes in the body, the heart does not have a direct role in excretion. The heart is primarily responsible for pumping blood throughout the body, ensuring the delivery of oxygen and nutrients to the cells.

Answer

Lungs help in excretion of carbon dioxide, liver help in excretion of toxic substance and skin help in removal of extra salts along with sweat.

Top Courses for NEETView all

Biology Class 11

Daily Test for NEET Preparation

Topic-wise MCQ Tests for NEET

NEET Mock Test Series - Updated 2026 Pattern

Physics Class 11

Top Courses for NEET

Top Courses for NEET

Related Content

About NEET

NEET Preparation Material

How to Prepare for NEET Exam?

NCERT Based Study Material

NEET Mock Tests

Other Popular Exams

Company