Question 5
Question 5 of 40
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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
4. Biological molecules
4.1. Biological molecules

Describe and be able to do chemical tests for: (a) starch (iodine solution) (b) glucose and maltose (Benedict’s solution) (c) protein (buret test) (d) lipids (ethanol emulsion test)

5. Enzymes
5.2. Effects of temperature and pH

Understand that the progress of enzyme-catalysed reactions can be followed by measuring the concentrations of reactants and products

3. Movement into and out...
3.1. Diffusion and osmosis

Investigate and explain the effects on plant tissues of immersing them in solutions of different concentrations, using the terms turgid, turgor pressure, plasmolysis and flaccid