All micro-organisms and enzymes are visible to the naked eye but there are very few around.
What do micro-organisms cause?
Illness which leads to death.
Food to go off and food poisoning.
Insects to grow in your body if eaten.
What type of micro-organisms cause illness?
Fungi
Bacteria
Virus
Lactose
Yeast
Mould
Amino acid
In what temperatures does bacteria grow? (C)
0-4
20-60
15-35
Bacteria grows with food and moisture over time and some need oxygen.