Excretion through Skin Liver and Lungs


 
 
Concept Explanation
 

Excretion through Skin Liver and Lungs

Excretion in Human Beings:

Although the kidneys are the main organs of excretion, the skin, lungs and liver also help in excretion.

Skin:

Our skin has sweat glands, through which we excrete small amounts of water, urea and salts.

Liver:

The liver excretes bile, which contains bile pigments. These are produced by the breakdown of old RBCs in the liver.

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Sample Questions
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Question : 1

Which of the following are correct ?

(a) Kidneys are the main organs of excretion, the skin, lungs and liver also help in excretion.

(b) The lungs help in getting rid of carbon dioxide, formed as a result of cellular respiration, through exhalation.

Right Option : C
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Question : 2

Which is the largest gland of human body ?

Right Option : D
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Question : 3

Which of the following are correct ?

(a) The kidneys are the main organs of excretion, the skin, lungs and liver also help in excretion .

(b) Skin has sweat glands, through which we excrete small amounts of water, urea and salts.

Right Option : C
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Explanation
 
 


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