Lipids

Question 1

What is water soluble and insoluble in?

Answer 1

Soluble in solvent like ethanol

Insoluble in water

Question 2

What do lipids contain

Answer 2

Carbon
Hydrogen
Oxygen
(But a lower amount of oxygen than carbohydrates)

Question 3

COOH

Answer 3

Carboxyl group

Question 4

Unsaturated fats

Answer 4

Good 
Lower melting points 
Liquid at room temp 
1+ double bonds 
Not maximum amount of hydrogen 
Plant oils 
Bonds make it less condensed

Question 5

Saturated

Answer 5

Bad
No double bonds so solid and condensed
Maximum amount of hydrogen a
Animal fats

Question 6

High levels of Lypo-proteins

Answer 6

Increase cholesterol in atheroma in coronary and other arteries
Increased fats= coronary heart disease

Question 7

Mammals use of lipids

Answer 7

Heat insulation
Protecting organs against impact
Buoyancy
Metabolic water

Question 8

Plant use for lipids

Answer 8

Waxy cuticle

Store energy in some seeds to provide a source of energy for germination

Question 9

Phospholipids differ from triglycerides

Answer 9

One phosphoric acid

One less fatty acid

Question 10

What type of bond is formed in a lipid

Answer 10

Ester bond