CIE IGCSE Biology: 复习笔记：6.1.10 Leaf Structure

Leaf structure

Diagram showing the cross-section of a leaf

How photosynthesising cells obtain carbon dioxide

• Pathway of carbon dioxide from the atmosphere to chloroplasts by diffusion:

atmosphere → air spaces around spongy mesophyll tissue → leaf mesophyll cells → chloroplast

Leaf Structure Table

Adaptations of Leaf Structure for Photosynthesis Table