Question 3
Question 3 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)

8. Human nutrition
8.2. Human digestive system

Describe the functions of amylase, maltase, protease and lipase, listing the substrates and end-products, limited to: (a) amylase breaks down starch to maltose (b) maltase breaks down maltose to glucose (c) protease (pepsin and trypsin) breaks down protein to amino acids (d) lipase breaks down lipids to fatty acids and glycerol

13. Excretion
13.2. Urinary system

Describe the role of the liver in the assimilation of amino acids by converting them to proteins