Name: Kidney as the Body Filter
Uploaded: 2019-07-19
Duration: 4 min 4 s
Description: The kidney is the waste manager of our body. Let us look inside the kidney and understand how this wondrous filtration system works. Watch the video now.

Question

How do plants get rid of excretory products?

Accepted Answer

Plants do not have a well-developed excretory system to remove nitrogenous waste materials when compared to animals. This is because of the differences in their physiology. Thus, plants use different strategies for excretion.

The excretory wastes are removed from the plant body in the following ways:

The gaseous waste materials produced during respiration are carbon dioxide and photosynthesis is oxygen, which diffuses out through stomata in the leaves and through lenticels in other parts of the plant.

Excess water evaporates mostly from stomata and also from the outer surface of the stem, fruits, etc., throughout the day. This process of getting rid of excess water is called transpiration.

The waste products, like oxygen, carbon dioxide and water, are the raw materials for the cellular reactions. The excess of carbon dioxide and water are used up in this way. The only major gaseous excretory product of plants is oxygen.

Many plants store organic waste products in their permanent tissues that have dead cells. Plants also store waste within their leaves or barks. These wastes are periodically removed as the leaves and barks fall off.

Some waste products are stored in special cells or cellular vacuoles. Various waste products such as tannins, essential oils, gums, resins, etc. are produced during catabolic processes.

Some plant wastes are stored as a thick, white fluid. We have seen a white fluid oozing out when we pluck papaya or a fig leaf, this white fluid is called latex.

How do plants get rid of excretory products?

Important Questions on Excretion

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