Lipids

Question 1

3 functions of lipids

Answer 1

1. store energy
2. form membranes
3. info and signaling

Question 2

saturated vs unsaturated

Answer 2

saturated = no double bonds

Question 3

which is more stable, unsaturated or a saturated fatty acid?

Answer 3

Saturated fatty acids are more stable bc double bonds cause more interactions btwn tails.

Question 4

anabolism vs catabolism

Answer 4

anabolism = build up
catabolism = break down

Question 5

triglycerides are polar or nonpolar

Answer 5

nonpolar = more stable

Question 6

3 major membrane lipids

Answer 6

1. phospholipids
2. sphingolipids
3. glycolipids

Question 7

Phospholipids

Answer 7

glycerol or sphingosine + fatty acid(s) + PO4

- major constituent of animal plasma membranes

Question 8

sphingolipids

Answer 8

• direct signaling activity

- 1 sphingosine + 1 fatty acid

Question 9

glycolipids

Answer 9

anchor protein to membrane

Question 10

sterols

Answer 10

increase membrane rigidity and decrease membrane permeability

Question 11

lipids

Answer 11

combo of fatty acid(s) + linker

Question 12

common fatty acid linkers

Answer 12

glycerol and sphingsine

Question 13

what fatty acid causes inflammation?

Answer 13

omega 6

Question 14

what fatty acid helps resolve inflammation?

Answer 14

omega 3

Question 15

fatty acid

Answer 15

Carboxylic acid with a long hydrocarbon chain

Question 16

Function of triglycerides

Answer 16

Storage Lipid

Question 17

Other functions of lipids

Answer 17

Colorants, odorants, vitamins, cofactors, cell surface markers