1.1. Cholesterol, shown in Figure 1, is a fatty chemical used by the body to build healthy cells.

Figure 1

State two chemical tests that could be used to identify functional groups within the cholesterol structure.

Your answer should include any expected observations and diagrams of the product of each test.

1.2. State the number of chiral carbons in the cholesterol structure.

1.3. A student suggested that cholesterol could be tested with plane polarised light to show that it contains chiral centres. 

Justify whether the student is correct.

1.4. There are a large number of naturally occurring biological molecules that contain chiral carbons. These biological molecules are often produced as enantiopure compounds in living organisms. All amino acids, except glycine, are a good example of this.

Suggest why amino acids are able to be produced as enantiopure compounds in living organisms.