Question 16
Question 16 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
3. Enzymes
3.1. Mode of action of enzymes

outline the use of a colorimeter for measuring the progress of enzyme-catalysed reactions that involve colour changes

2. Biological molecules
2.1. Testing for biological molecul...

describe and carry out a semi-quantitative Benedict’s test on a reducing sugar solution by standardising the test and using the results (time to first colour change or comparison to colour standards) to estimate the concentration

3. Enzymes
3.2. Factors that affect enzyme act...

investigate the difference in activity between an enzyme immobilised in alginate and the same enzyme free in solution, and state the advantages of using immobilised enzymes