1. The Cell

2. The cell is the basic unit of life

3. Structures and Functions
Three main cell components:
1. Cell membrane(seen with microscope)
- a flexible barrier that surrounds the cell content, allowing the cell to interact with the environment
Functions:
- forms barrier and protects cell
- facilitates absorption (nutrients &other substances)
- facilitates the evacuation(wastes & substances)

4. 2. The Cytoplasm(seen with microscope)
- gelatinous fluid inside the cell membrane & outside the nucleus
Function:
- environment hospitable for most cell activities

5. The Nucleus(seen with microscope)
-Cell’s control centre (dark in colour)
Function
- Contains and protects individual genetic information

6. Organelles Cytosol is the gelatinous substance of the cytoplasm
Organelles: small structure in the cytosol which have specific functions
Ex. Mitochondria, Golgi apparatus etc.

7. Mitochondria Produces energy through cellular respiration.
C6H12 O6 + 6 O CO2 + 6 H2O +
energy

8. Lysosomes: - Digests and recycles cell components Endoplasmic Reticulum: - produces material for cell - transports materials from one part of cell to another

9. Ribosomes: - produces materials for cell activities Golgi Apparatus: - stores materials - transports materials from cell to outside of cell

10. Plant Cell

11. Animal Cell

12. Animal vs. Plant Cell 1. plant has Cell Wall
2. Animal (irregular shape)
Plant (rectangular shape)
3. Vacuole: Plant (1 large)
Animal ( 1or more small)
4. Plant have chloroplasts
5. Plant lysosome usually not present

13. Read p
Do. P WB