| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.HL.TZ2.10 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 10 | Adapted from | N/A |
Question
For what purpose is the enzyme lactase useful?
A. Production of lactose-free milk so that more people can consume dairy products
B. As a dietary supplement to aid in protein digestion of milk
C. For use in coagulating milk protein to make cheese
D. To improve protein consumption in developing countries that lack milk
Markscheme
A
Examiners report
N/A
Syllabus sections
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- 17M.3.SL.TZ1.1a: Outline what the standard deviations reveal about the data from this experiment.
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- 17M.1.SL.TZ1.21: Cladograms can be created by comparing DNA or protein sequences. The cladogram on the left is...
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- 16N.3.SL.TZ0.2c: Explain the importance of having equal quantities of the enzyme at the start of the experiment.
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- 15M.1.HL.TZ1.9: Why does exposure to high temperatures cause an enzyme to lose its biological properties?A....
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- 15M.1.HL.TZ2.11: Which is the activation energy of a reaction when it is catalysed by an enzyme?
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- 09M.1.HL.TZ2.34: Which of the following statements is true about enzymes? A. They are used up in the...
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- 10M.2.HL.TZ1.2d: Simple laboratory experiments show that when the enzyme lactase is mixed with lactose, the...
- 10M.2.SL.TZ1.2d: Simple laboratory experiments show that when the enzyme lactase is mixed with lactose, the...
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