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Fun Video: Excretion in Human Beings Video Lecture - Class 10

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FAQs on Fun Video: Excretion in Human Beings Video Lecture - Class 10

1. What is excretion in human beings?
Ans. Excretion in human beings refers to the process by which waste products and harmful substances are removed from the body. It involves the elimination of metabolic waste, such as urea, through various organs like the kidneys, lungs, and skin.
2. How do the kidneys contribute to excretion in human beings?
Ans. The kidneys play a crucial role in excretion by filtering the blood and removing waste products and excess water as urine. They regulate the concentration of various substances in the body, maintain water balance, and help in the excretion of metabolic waste products like urea.
3. What is the role of the skin in excretion?
Ans. The skin is an important excretory organ in human beings. It eliminates waste products through sweat glands, mainly in the form of water, salts, and small amounts of urea. Sweating helps regulate body temperature and also aids in excreting certain toxins and metabolic waste.
4. How does the respiratory system contribute to excretion?
Ans. The respiratory system is involved in excretion by eliminating carbon dioxide, a waste product of cellular respiration. During inhalation, oxygen is taken in, and during exhalation, carbon dioxide is expelled. This exchange of gases helps remove the waste product from the body.
5. What are the consequences of impaired excretion in human beings?
Ans. Impaired excretion can lead to various health issues. For example, if the kidneys are unable to excrete waste products properly, it can result in the buildup of toxins in the body. This can lead to conditions like kidney stones, urinary tract infections, or even kidney failure. Similarly, if the skin or lungs are not functioning properly, it can affect the excretion of waste and disrupt normal bodily functions.
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