Page 226 - Primary Six Notes

2. Photosynthesis

This is the process by which plants make their own food/

starch.

Photo- means light and Synthesis means building up

Conditions for photosynthesis

1. Chlorophyll

2. Water

3. Carbon dioxide

4. Sunlight energy

The products of this process is food (carbohydrates, starch or

glucose) and oxygen. Oxygen in this case is a bi-product

(waste) and release to the atmosphere.

Chlorophyll

This the green pigment (coloured matter) in plants.

Chlorophyll is used for;

 It traps light energy from the sun

 Light energy is used during photosynthesis by leaves to
make starch and store it as chemical energy

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