Excretion through Skin Liver and Lungs
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. As hemoglobin breaks down, its iron is retained, while the pigment (haem) is excreted with the bile. The liver also excretes cholesterol. Liver is a reddish brown gland situated on the right side in the upper part of the abdomen . It is the largest gland of our body .
Lungs:
The lungs help in getting rid of carbon dioxide, formed as a result of cellular respiration, through exhalation.
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) Bile is produced by the breakdown of old RBCs in the liver. (c) The lungs help in getting rid of carbon dioxide, formed as a result of cellular respiration, through exhalation. | |||
| Right Option : D | |||
| View Explanation | |||
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 | |||
| View Explanation | |||
Which of the following are correct ? (a) Liver has sweat glands, through which we excrete small amounts of water, urea and salts. (b) The liver also excretes cholesterol. | |||
| Right Option : B | |||
| View Explanation | |||
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