Skip to content

Course home

Sign up

1.3 Enzymes

EasyMediumHard
123456789101112131415161718192021222324252627282930313233
Question 15
F

Two enzyme-controlled reactions take place in a cell.

Reaction P joins many sugar molecules to form a carbohydrate.

Reaction Q breaks a protein down into amino acids.

Which statement describes these reactions correctly?

[1]
A

P is breakdown; Q is synthesis; neither enzyme is used up.

B

P is synthesis; Q is breakdown; both enzymes are used up.

C

P is breakdown; Q is synthesis; both enzymes are used up.

D

P is synthesis; Q is breakdown; neither enzyme is used up.

Markscheme

1.3 Enzymes Questions

  1. GCSE
  2. /Biology
  3. /1.3 Enzymes

44 exam-style questions on Edexcel GCSE Biology 1.3 Enzymes, covering 1.3.1 Mechanism of enzyme action, 1.3.2 Denaturation of enzymes, 1.3.3 Factors affecting enzyme activity, and 1.3.4 Measuring energy in food by calorimetry. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank