Question 4
Question 4 of 40
Question image for Q4
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
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
5. Enzymes
5.2. Effects of temperature and pH

Explain the effect of changes in temperature and pH on enzyme activity in terms of kinetic energy, shape and fit, denaturation and the frequency of effective collisions

5. Enzymes
5.1. Enzyme action

Describe a catalyst as a substance that increases the rate of a chemical reaction and is not changed by the reaction