Topic 1: lipids

Question 1

Name two groups of lipids:

Answer 1

1 Triglycerides
2. Phospholipids

Question 2

Name the reaction that forms lipids:

Answer 2

Condensation

Question 3

Draw a label a triglyceride

Question 4

Condensation reactions join the molecules to create triglycerides. Name the bond that forms and state between which molecules of the lipid it forms:

Answer 4

• Bond - Ester bond
• Location - Between glycerol and a fatty acid (RCOOH)

Question 5

Define Saturated fatty acid:

Answer 5

The hydrocarbon chain only contains single carbon- carbon bonds.

Question 6

Define unsaturated fatty acid

Answer 6

The hydrocarbon chain contains at least one double bond between carbon atoms.