1. Leaf Structure and Photosynthesis
Standard Grade Biology

2. Photosynthesis
Green plants (producers) can use light energy to make their own food
This process is called photosynthesis
Green plants are green because they contain a chemical called chlorophyll. This chemical is used to trap light energy.

3. Chlorophyll is contained in the chloroplasts of plant cells
Light energy is used to change carbon dioxide and water into glucose and oxygen
The word equation for photosynthesis is
carbon dioxide + water → glucose + oxygen
Using glucose as a starting point, plants can synthesize starch which is stored for later use, and also by absorbing nitrogen compounds present in the soil, they can make proteins to build or repair cells.
Light energy

4. Structure of a leaf

5. Starch Test a Leaf

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