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1.1 Cell structure

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Question 7
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Two identical bottles of apple juice contain the same small number of bacteria and enough nutrients for growth. One bottle is kept in a warm room and the other in a cool room. After several hours, the warm juice contains many more bacteria.

Which statement best explains the difference in the numbers of bacteria?

[1]
A

The plasmids in the warm bacteria leave the cells, and each one develops into a new bacterial cell.

B

The bacteria in the cool juice lose their cell walls, so they cannot divide to form new cells.

C

The bacteria in the warm juice divide more often by binary fission because the temperature is more suitable.

D

The bacteria in the warm juice photosynthesise in their chloroplasts, so they make more food for growth.

Markscheme

1.1 Cell structure Questions

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

282 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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