unit 2: lipids

Question 1

what distinguishes lipids

Answer 1

it’s hydrophobic

Question 2

structure of lipids

Answer 2

glycerol and 3 fatty acids (carboxyl and hydroxyl)

Question 3

what links the structure together

Answer 3

ester bond

Question 4

function of lipids

Answer 4

energy storage

Question 5

what bonds go through the hydroxyls/ fatty acids

Answer 5

van der waals

Question 6

saturated fat is what at room temp

Answer 6

solid

Question 7

where does saturated fat come from mostly

Answer 7

animals

Question 8

structure of saturated fat

Answer 8

linear, line

Question 9

saturated fat has how many double bonds

Answer 9

none

Question 10

saturated fat has how many hydrogen

Answer 10

max number

Question 11

unsaturated fat is what state at room temp

Answer 11

liquid

Question 12

unsaturated fat has how many double bonds

Answer 12

one or more

Question 13

unsaturated fat has how many hydrogen

Answer 13

double bond replaces 2 hydrogen

Question 14

unsaturated fat is what shape

Answer 14

kinked, crocked if cis, straight if trans

Question 15

unsaturated fat is from what

Answer 15

mostly plants

Question 16

does cis or trans change shape of the hydroxyl, what does it do

Answer 16

cis, makes it crocked

Question 17

phospholipids are made up from

Answer 17

glycerol, 2 fatty acids (hydroxyl) and phosphate (polar head)

Question 18

amphipathic is what

Answer 18

one end of hydrophobic and one is hydrophilic

Question 19

function of phospholipids

Answer 19

create bi-layer, a lot of them together creates a circle

Question 20

bi-layer

Answer 20

main fabric of cell membrane

Question 21

steroid function

Answer 21

cholesterol in membrane, hormones, buffers membrane fluidity and cell signaling

Question 22

triglyceride

Answer 22

glycerol backbone esterified with three fatty acids

Question 23

fats 6 main points

Answer 23

1. energy storage
2. insulation
3. ester linkage (glycerol and 3 fatty acids) (carboxyl and hydroxyl )
4. saturated vs unsaturated
5. cis vs trans
6. liquid vs solid

Question 24

phospholipids 4 main points

Answer 24

1. major component of cell membrane
2. amphipathic
3. love h20/ hate h2o
4. glycerol and 2 fatty acids and phosphate

Question 25

sterols 4 main points

Answer 25

1. cholesterol
2. steroid hormones
   buffers membrane fluidity
3. cell signaling

Question 26

trans-unsaturated without hydrogen

Answer 26

unnatural, unhealthy, solid