Lipids

Question 1

Lipids functions include?

Answer 1

carriers (electrons and substrates)
vitamin absorption
part of biological membranes
energy stores

Question 2

What are simple lipids comprised of?

Answer 2

Glycerol backbone and fatty acids

Question 3

What are the two types of Fatty acids?

Answer 3

1 Acetic acid (saturated)

2 Linoleic acid (unsaturated)

Question 4

Compound Lipids are?

Answer 4

Esters of fatty acids containing non-lipid substances

Question 5

Mono, Di and Triglycerides are?

Answer 5

Esters of glycerol and fatty acids

Question 6

What is a Glycolipid?

Answer 6

2 alcohol groups of glycerol esterified and third is linked to a sugar residue

Question 7

What are essential fatty acids needed for?

Answer 7

Membranes, lipid transport, enzymes and prostaglandins

Question 8

What do Bile salts achieve?

Answer 8

Emulsify fats leaving the stomach (aids hydrolysis)

Question 9

What are Bile salts known as?

Answer 9

Amphipaths

Question 10

Where does digestion mostly occur and by what enzyme?

Answer 10

Small intestine and Pancreatic enzyme

Question 11

4 distinct phases of lipid assimilation

Answer 11

1. Emulsification (by bile salts)
2. Hydrolysis
3. Micelle formation
4. Absorption

Question 12

What is the difference with Ruminant ether digestion?

Answer 12

Presence of microbes

Question 13

True or false? Your mums your cousins uncle?

Answer 13

True

Question 14

True or false? Generally plant and marine oils are more highly unsaturated than mammalian fat

Answer 14

True

Question 15

Where do long chain FA produced by lipolysis get absorbed?

Answer 15

Not in the ruminoreticulum but the duodenum