Lipids

Question 1

Some seeds contain lipids. Describe how you could use the emulsion test to show that a seed contains lipids.

Answer 1

1. Crush/grind2. With ethanol/ alcohol3. Then add water/then add to water4. Forms emulsion / goes white/cloudy

Question 2

The structure of a phospholipid molecule is different from that orf a triglyceride. Describe how a phospholipid is different.

Answer 2

1. Phosphate/ PO4;2. Instead of one of the fatty acids / and two fatty acids