The Ultrastructure of plant cells

1. The Ultrastructure of plant cells Specification statements 3.2.4- cells There are fundamental differences between plant cells and animal cells The structure of palisade cell from a leaf as seen with an optical microscope The appearance, ultrastructure and function of; Cell wall Chloroplasts

2. Complete the following

5. Light shines on the upper surface of a leaf. Palisade cells are where most photosynthesis takes place. How are palisade cells specialised for photosynthesis?

6. Palisade cells • Where are palisade cells found? • Draw and label a palisade cell. • What is the main adaptation of a palisade cell that allows it to carry out its function. • Why do you think palisade cells have a long thin rectangular shape?

7. Palisade cells • Where are palisade cells found? Part of the palisade mesophyll below the upper epidermis of the leaf. 3. What is the main adaptation of a palisade cell that allows it to carry out its function. Function is to carry out photosynthesis. Contains a large amount of chloroplasts. 4. Why do you think palisade cells have a long thin rectangular shape. They can be tightly packed into the layer.

8. Chloroplasts

9. Electron micrograph of a chloroplast