Across
- 3. mesophyll layer with airspaces to allow air to reach main photosynthesising layer
- 4. two of these form a pore on the leaf surface
- 6. mesophyll layer where most photosynthesis takes place
- 7. gas needed for photosynthesis
Down
- 1. pores in the undersides of leaves
- 2. light transports this into guard cells
- 5. organ specialised for photosynthesis
- 7. waterproof layer over leaf preventing water loss