Page 225 - Primary Six Notes

Importance of transpiration to plants

 It is through this process that water and mineral salts are

pulled from the roots to the upper parts of the plant where

they are used

 It helps in cooling the plant. The leaf which is too warm los-

es heat as water evaporates from its surface

How plants reduce the rate of transpiration

1. Leaves have a layer of wax, which helps to cover the stomata

2. Some plants reduce the rate of transpiration by shedding

their leaves. Trees that shed their leaves during the dry sea-

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3. Some plants reduce the big size of leaves to thorns e.g. cac-
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