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Date November 2016 Marks available 2 Reference code 16N.2.HL.TZ0.3
Level Higher level Paper Paper 2 Time zone TZ0
Command term Identify Question number 3 Adapted from N/A

Question

Identify the following processes as either anabolism or catabolism by placing a tick (√) in the correct box.

[2]
a.

Outline the importance of enzymes to metabolic processes.

[4]
b.

Markscheme

 

 

 

a.

a. increase rate of reaction/speed up reaction

b. lower activation energy

c. a specific enzyme for each reaction/substrate

d. metabolic process/pathway blocked if an enzyme is inhibited/absent

e. end-product inhibition can control metabolic pathways

f. differences in metabolism as cells produce different enzymes during differentiation

b.

Examiners report

[N/A]
a.
[N/A]
b.

Syllabus sections

Additional higher level » Topic 8: Metabolism, cell respiration and photosynthesis » 8.3 Photosynthesis
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