1. Cell Structure The difference between plant and animal cells
S3 Biology
Cell Structure
The difference between plant and animal cells

2. Revision from S1/2

3. What do you remember? A B C D

4. Some starter information
Cells are the basic units of life
All living organisms contain cells
There are many different types of cells
Unicellular organisms are made up of just one cell
Multicellular organisms are made up of many cells
Cells can be stained to see cell structures more clearly

5. Animal cell structure
1. Cytoplasm
2. Nucleus
3. Cell membrane

6. Structure and function
1. Cytoplasm Site of biochemical reactions 2. Nucleus Contains genetic information. Control centre of the cell 3. Cell membrane Controls what enters and exits the cell

7. Cheek epithelial cells: Example of animal cell

8. Plant cell structure 1. Vacuole 2. Chloroplast 3. Nucleus 4. Cytoplasm
5. Cell membrane
6. Cell wall

9. Structure and function
1. Vacuole Contains watery cell sap 2. Chloroplast Site of photosynthesis 3. Nucleus Contains genetic information. Control centre of the cell 4. Cytoplasm Site of biochemical reactions 5. Cell membrane Controls what enters and exits the cell 6. Cell wall Boundary round plant cell, maintains cell shape. Freely permeable

10. Examples of plant cells
Onion
Rhubarb
Elodea
What do all these cells appear to have in common?

11. What structures do animal and plant cells have in common?
Cell membrane
Nucleus
Cytoplasm