662871
Description
Mind Map by alice.finlay, updated more than 1 year ago
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Created by alice.finlay
over 10 years ago
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Microorganisms
- 3 types of microorganisms
- Bacteria
- Viruses
- Fungi
- Bacteria
- Bacteria
- DNA = Controls cell's activities and replication
- Cell Wall = Maintains shape and
prevents osmotic lysis (bursting)
- Flagellum = For movement
- Bacterial Reproduction
- Bacteria reproduce
asexually by binary fission
- In industry, this process
can be accelerated in
large fermenters e.g. GM
bacteria to make insulin
and making yoghurt
- Right conditions, reproduction/growth is rapid.
Can lead to food spoilage and disease
- Some bacteria consume food (organic
nutrients) while some make their own, they
can survive on a wide range of energy
sources and they can exploit a wide range of
habitats - This helps them to survive
- Bacteria reproduce
asexually by binary fission
- Aseptic Techniques
- Wear disposable gloves/wash hands
(before and after working with bacteria
- Disinfect work area
- Never leave lids off petri dishes
with bacterial cultures growing
- Sterilise (with heat) all of the equipment
- Wear disposable gloves/wash hands
(before and after working with bacteria
- DNA = Controls cell's activities and replication
- Viruses
- Very small
- Non-living and can only
reproduce inside other
living cells
- Can only attack
specific cells
- Can infect plants,
animals and bacterial
cells (bacteriophages)
- Virus Reproduction
- 1.Virus attaches to specific host cell, 2.Injects its genetics
into cell, 3.It uses cell's own components to make new
viruses, 4.Host cell splits open, releasing viruses
- 1.Virus attaches to specific host cell, 2.Injects its genetics
into cell, 3.It uses cell's own components to make new
viruses, 4.Host cell splits open, releasing viruses
- Very small
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