biology gcse module 4- leaf structure

structure of a leaf

Leaves are designed for making food by photosynthesis.

Important features;

Adapted for photosynthesis by;

• Broad surface area- more exposed to light
• Thin - carbon dioxide and water vapour only have to travel a short distance to the photosynthesing cells.
• air spaces in spongy mesophyll layer- allows gases like Carbon dioxide & oxygen to move easily between cells.

          - this also…