Tuesday 6 November 2012

MICROORGANISMS GROW

1. Microorganisms grow under suitable conditions.

2. When microorganisms grow on food, the food turns bad.
   (a) A bowl of rice will be covered with white patches after a few days.
   (b) Bread mould will grow on moist bread when the temperature is suitable.
   (c) The surface of a rotten orange is covered with patches pf fungi.

Mouldy bread
Rotten oranges
Try Your Best:

A slide of bread was left in a drawer in a kitchen. After a week, the bread was found to be mouldy. Bread mould grows best in an environment that is ____________________.

A. warm and dry
B. cold and dry
C. warm and moist
D. cold and moist


Explanation:


Bread mould is a type of fungus. Fungi grow very well in a warm and moist environment.

Answer: C

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