Question

Question 72
How do leaves of plants help in excretion?

Answer 1

Many plants store waste materials in the cellular vacuoles (of mesophyll cells and epidermal cells). When old leaves fall, the waste materials are excreted along with the leaves. Removal of carbondioxide and oxygen as waste products during respiration and photosynthesis also takes place in leaves with through stomatal pores. Leaves are also responsible for the removal of extra water by transpiration.