Microorganisms (not done yet :)!)

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Micro-organisms
- Bacteria
  - Prokaryotae
    - do not possess membrane-bound nucleus
  - unicellular
    - colony
      - appear coloured
      - can be seen with naked eye
        cannot be seen with naked eye
        
        "Together we stand, divided we fall!"
  - cannot be seen with naked eye
  - food
    - environment
    - some can make their own food in the presence of sunlight
  - cell
    - chromosomal DNA
      - not enclosed within a nuclear membrane
        coiled up to occupy part of cytoplasm
    - circular plasmids (DNA)
      - 'mature' DNA
      - can be used as vectors in genetic engineering
    - cell membrane
    - cell wall
      - NOT made of cellulose
      - made of a complex mixture of proteins, sugars and lipids.
        Lipids: fats and oils
    - flagellum
      - propel the bacterial cell forward
    - slime capsule
      - gives cell a 'wet' look
  - respiration
    - aerobic
      - bacteria that need oxygen for their respiration
    - anaerobic
      - bacteria that do not need oxygen for their respiration
      - found deep in sea, soil
  - reproduction
    - cell division
      - binary fission
        under 'favourable conditions'
        nutrients
        
        optimum temp
        
        may occur very fast
often group together in
colony
- appear coloured
- can be seen with naked eye
  - "Together we stand, divided we fall!"

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