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Cellular control

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Question 1
65%

Lactose metabolism in E. coli is controlled by the lac operon.

Which of the structures or molecules associated with the lac operon consist of polypeptides?

  1. The repressor protein
  2. The promoter
  3. The β\betaβ-galactosidase enzyme
A

1, 2 and 3

B

Only 1 and 3

C

Only 1 and 2

D

Only 2 and 3

Markscheme

Cellular control Questions

  1. A Level
  2. /Biology
  3. /Cellular control

30 exam-style questions on OCR A A Level Biology Cellular control. Each one has a worked solution and a mark scheme showing where the marks go.

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