Lipids

Question 1

What is the structure of a triglyceride?

Answer 1

1x Glycerol back bone
3x fatty acids

Question 2

What is the structure of a phospholipid?

Answer 2

1x glycerol backbone
1x phosphate
2x fatty acid tails

Question 3

What are the properties of an unsaturated fat?

Answer 3

-liquid at room temp
- carbon-carbon bonding
-less packed together
-vegetable oils

Question 4

What are the properties of saturated fats?

Answer 4

-carbon bonding to hydrogen, no carbon-carbon bonding
-solid at room temp
- meat and dairy

Question 5

What is a phospholipid bi layer?

Answer 5

Hydrophilic head on the outside, and hydrophobic tails on the inside to provide water repellent barrier

Question 6

What elements are lipids composed of?

Answer 6

Carbon, hydrogen and oxygen in long hydrocarbon chains

Question 7

What are essential fatty acids?

Answer 7

Cannot be made by the body; may have to be injested

Question 8

Are lipids soluble or insoluble?

Answer 8

Insoluble

Question 9

Are lipids polar or non polar?

Answer 9

Non polar

Question 10

Where may fats be stored for energy?

Answer 10

Adipose tissue

Question 11

What is the main function of fats?

Answer 11

Insulate and protect internal organs

Question 12

What is the disease where plaque deposits form in arteries?

Answer 12

Atherosclerosis

Question 13

Phospholipids can assemble into bubbles called?

Answer 13

Micelle

Question 14

What are some of the functions of phospholipids?

Answer 14

Matrix of cell wall
Myelin sheath