NCERT Solutions for Class 7 Science Chapter 11
Important NCERT Questions
7th Chapter 11 Transportation in Animals and Plants
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 12
Why is it necessary to excrete waste products?
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When our cells perform their functions, certain waste products are released. These are toxic for our body and hence need to be removed from the body.
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Excreting waste products is essential for the body’s health. When cells work, they produce waste like carbon dioxide and urea. If not removed, these wastes can harm the body. Excretion maintains a balance inside the body, preventing toxic build-up. It helps regulate temperature by sweating and supports organ function. Organs like the kidneys remove waste from the blood, ensuring the body works well. Overall, excretion keeps the body healthy by removing harmful substances and maintaining balance.