ANIMAL PHYSIOLOGY
EXCRETION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Through dead tissues with falling leaves
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Stored resins and gums in old xylem
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Into the soil from roots
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All of the above
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Detailed explanation-1: -In plants, waste products are removed by diffusion. Plants, excrete oxygen, a product of photosynthesis. Plants get rid of water by transpiration. Waste products may be stored in vacuoles or may be stored in leaves which fall off.
Detailed explanation-2: -Strategies used by plants for excretion are :i They can get rid of excess water and oxygen through stomata. ii Many plant waste products are stored in cellular vacuoles. iii Waste products may be stored in leaves that fall off. iv Waste products are stored as resin and gums especially in old xylem.
Detailed explanation-3: -Although the kidneys are the main organs of excretion, several other organs also excrete waste s. They include the large intestine, liver, skin, and lungs.
Detailed explanation-4: -The process of excretion in plants occurs in the following ways: Through the stomata of leaves and lenticels of stems, oxygen, carbon dioxide, and water vapour are expelled as gaseous wastes. Some waste materials gather in tree bark and leaves. The wastes are removed when the leaves and bark are shed.