Page 222 - Primary Six Notes

Functions of l eaves to plants

1. Leaves make food (starch) for the plant in the process called

photosynthesis

2. Leaves allow the plant to breathe through small holes called

stomata (stoma - singular)

3. Leaves carry out transpiration. Transpiration is the process

by which plants lose water in form of water vapour to the at-

mosphere

4. Some leaves store food and water for the plant e.g. onions

and bryophyllum

5. Some leaves are used for propagation like in bryophyllum,

aloe vera

Uses of leaves to man/animals

 Some leaves are a source of food to man e.g cabbages

 Some leaves are used as herbal medicine

 Some leaves are used as feeds to animals i.e pastures

 Some leaves are used for propagation by man

 Some leaves are used for thatching houses/shelter for man

Processes in Leaves

1. Transpiration

This is the process by which plants lose water in the form of

water vapour to the atmosphere