C2 p2 slides Lipids

Question 1

largely nonpolar compounds that are insoluble in water

Answer 1

lipids

Question 2

Lipids are composed of ?

Answer 2

fatty acids

Question 3

fatty acid structure

Answer 3

carboxylic acid polar head. hydrocarbon nonpolar tail.

Question 4

shorter chain length and unsaturation ? melting temperature of fatty acid

Answer 4

decreases

Question 5

Cause kinds in hydrocarbon tails of fatty acids

Answer 5

cis double bonds

Question 6

? fat correlates w/ heat disease

Answer 6

trans

Question 7

Optimal fatty acid charactersitics for tight packing

Answer 7

long chain, few kinks

Question 8

triacylglycerolstructure

Answer 8

fatty acid triester of glycerol. Three fatty acid chains bound to a glycerol.

Question 9

fatty acids linked by ? linkage

Answer 9

ester

Question 10

function of triacylglycerol

Answer 10

fatty acid storage as an energy reserve

Question 11

major constituents of cell membrane

Answer 11

phospholipids

Question 12

micelles

Answer 12

spheres with polar heads facing outward toward water and hydrophobic tails facing inward

Question 13

phospholipid structure

Answer 13

fatty acids bound to two carbons of glycerol. Phosphate with hydrophilic group bond to third carbon

Question 14

fatty acids form ? in water

Answer 14

micelles

Question 15

Triglycerides form this in water

Answer 15

large spherical fat droplets

Question 16

Phospholipids and glycolipids form this in water

Answer 16

bilayer

Question 17

steroids are made from these subunits

Answer 17

ispoprenes

Question 18

two common steroids

Answer 18

cholesterol, testosterone

Question 19

most abundant steroid in animals

Answer 19

cholesterol

Question 20

steroid that is a major component of animal membranes

Answer 20

cholesterol

Question 21

cholesterol is a ? due to a hydroxyl group at its third carbon

Answer 21

sterol

Question 22

combination between lipids and carbohydrates

Answer 22

glycolipids

Question 23

glycolipid structure

Answer 23

carbohydrates are linked to polar head of amphipathic molecule