Which of these is not an excretory product of plant?

Explanation

Plants, like animals, produce waste materials that need to be eliminated from their systems. This process is known as excretion. The question asks which of the given options is not an excretory product of a plant. Option A states tannin, which is a bitter-tasting compound found in many plants. Tannins are excreted by plants to eliminate excess or unwanted materials. Option B states gum, which is a sticky substance that is excreted by certain plants to seal wounds or protect against predators. Option C states alkaloid, which is a group of nitrogenous compounds that are produced by plants as a defense mechanism against herbivores. Option D states sweat, which is the correct answer as it is not an excretory product of plants. Sweat is a fluid produced by human sweat glands and is used for thermoregulation. Plants do not have sweat glands and do not produce sweat. In summary, the correct answer to the question is Option D (Sweat), as it is not an excretory product of plants. For more information, please see the recommended textbooks.