Question

How do plants excrete waste materials - Answer for class 7

Answer 1

In green plants, the carbon dioxide released during respiration gets utilized during photosynthesis. Oxygen is a by product generated during photosynthesis, and exits through stomata, root cell walls, and other routes. ... Plants also excrete somewaste substances into the soil around them.

Answer 2

Excretion is not the same as egestion - which is the passing out of undigested food through the anus as faeces.

Plants:-Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respirationin plant cells. Oxygen is a waste product ofphotosynthesis.The leaf:-Unlike animals, plants do not have specialised excretory organs. Excess carbon dioxide and oxygen are excreted from the plant through the stomata in the leaves.