B4 biology ocr gateway

LEAF STRUCTURE

Leaves are designed for making food by photosynthesis.

  carbon dioxide + water --> glucose + oxygen   - important equation to remember for photosynthesis.    Leaves are adapted for photosynthesis: -they are broad, so a large surface area exposed to light. -they are thin, so carbon dioxide and water vapour only have to travel a short distance to reach the photosynthesising cells -are air spaces in spongy mesophyll layer. -contains lots of chlorophyll,which absorbs light energy for photosynthesis. -upper epidermis is transparent so light can pass through in to the palisade layer. -lower…