Which excretory product in produced in plants during autotrophic mode of life?
Correct answer: C. O2
- A. CO2
- B. H2O
- C. O2
- D. Both A and B
Explanation
During autotrophic nutrition, plants carry out photosynthesis and release oxygen as a by-product when water is split during the light reactions. The likely distractor is carbon dioxide, but carbon dioxide is a raw material consumed in photosynthesis, not its net waste product.
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About Excretion
Excretion removes metabolic wastes such as carbon dioxide, urea and excess salts, and differs from egestion, which removes undigested food. Questions cover kidney structure, nephron ultrafiltration, selective reabsorption and urine formation, along with the excretory roles of the lungs, skin and liver in maintaining homeostasis.
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