Palisade Leaf Cells are packed with chloroplasts at the top of the cell so that they are nearer the light. They are adapted for photosynthesis.
Tall shape- larger surface area
Thin shape- Lots packed into the top of the cell
Guard cells are adapted to open and close pores.
They are a special kidney shape which opens and closes the stomata in the leaf.
Plant is full of water= Guard cells fill with water. They go plump and turgid.
Stomata then OPEN so that gases can be exchanged for photosynthesis.