Unit 2: Fats And Oils

Question 1

Fats and oils are based on what

Answer 1

Based on glycerol, propane-1,2,3-triol

Esters of glycerol and long chain carboxylic acids

Question 2

Hydrocarbon chains

Answer 2

Can be from 4-24 C’s Long
Can be single bonded (saturated) or double bonded (unsaturated)

Question 3

Fat molecules

Answer 3

Packed together tightly, making fats solid at room temperature

Question 4

Oil molecules

Answer 4

Less tightly packed molecules make oils liquid because forces between molecules are weaker

Question 5

Hydrogenation

Answer 5

Addition of hydrogen to unsaturated oil “hardens” and increases melting point

Question 6

Glycerol and fatty acid ratio

Answer 6

1:3