Zusammenfassung der Ressource
Bacteria
- unicellular
- Found in Air,soil, water
- Can be non-pathogenic
- Conditions for growth
- Temperature
- Food
- Oxygen
- pH Levels
- Moisture
- Time
- Structure of Bacteria
- Capsule - Protective Layer
- Cell Wall - Gives cell shape
- Cell Membrane - semirane-permeable membrane
- Nuclear Material - Distinguishes one bacteria from another
- Ribosome - Makes proteins
- Flagellae - Allows cell to move
- Reproduction of Bacteria
- Binary Fission
- 1.Nuclear material divides in two
- 2. Membrane forms between two sets of nuclear Material
- 3. cell wall forms dividing cell into two daughter cells
- 4. Cells separate
- Bacteria produce rapidly
- Advantages and disadvantages of Bacteria
- Advantages
- Produce vit B & K
- used as a starter culture of yoghurt
- Breaks down waste matter
- Disadavantage
- Cause food spoilage
- cause food poisoning
- cause disease ie. Cholera