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Question 19M.1A.SL.TZ1.9

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ1.9
Level SL Paper 1A Time zone TZ1
Command term Deduce Question number 9 Adapted from N/A
9.
[Maximum mark: 1]
19M.1A.SL.TZ1.9

The graph shows the results of an investigation into the activity of turnip peroxidase. The accumulation of the product of the reaction catalysed by the enzyme is shown at different pH values.

[Source: © International Baccalaureate Organization 2019]

 

Based on the data in the graph, what is most probably the optimum pH for turnip peroxidase?

A. Between 3 and 5

B. Between 10 and 11

C. Between 7 and 8

D. Between 9 and 10

[1]

Markscheme

C

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