Question 38
Question 38 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
21. Biotechnology and gen...
21.2. Biotechnology

Investigate and describe the use of biological washing powders that contain enzymes

5. Enzymes
5.1. Enzymes

Investigate and describe the effect of changes in temperature and pH on enzyme activity with reference to optimum temperature and denaturation