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1.1 Cell structure

1.1 Cell structure

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Question 30
F

Microorganisms can be grown in a nutrient broth in a flask, or as colonies on an agar plate.

a.

Give one substance that a nutrient broth must contain for microorganisms to grow.

[1]
b.

Give one advantage of growing microorganisms on an agar plate rather than in a nutrient broth.

[1]
c.

A scientist wants to grow a very large number of one type of bacterium. Suggest why a nutrient broth is more suitable than agar plates for this.

[2]
d.

Explain why the flask of nutrient broth must be sterilised before the bacteria are added to it.

[2]
Markscheme

1.1 Cell structure Questions

  1. GCSE
  2. /Biology
  3. /1.1 Cell structure

163 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.

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