lipids

Question 1

3 types of lipids

Answer 1

1) Triglycerides
2) Phospholipids
3) Sterols

Question 2

lipids are waterproofing

Answer 2

due to insolubility

Question 3

lipids are insulating

Answer 3

+ protect organs

Question 4

sterols

Answer 4

small fatty molecules

Question 5

cholesterol

Answer 5

maintains fluidity of cell membrane

Question 6

triglyceride

Answer 6

formed from the esterfication of 3 fatty acids and glycerol
- result of condensation
- results in the removal of 3 molecules of water

Question 7

ester bond

Answer 7

condensation reaction between glycerol and fatty acid

Question 8

2 kinds of fatty acids

Answer 8

saturated and unsaturated

Question 9

saturated fatty acids

Answer 9

c-c bonds only

Question 10

unsaturated fatty acids

Answer 10

c=c bonds + kink

Question 11

when the number of c=c bonds increases

Answer 11

melting point decreases
- kink prevents compact arrangement

Question 12

polyunsaturated fatty acids

Answer 12

liquids at room temp

Question 13

phospholipids

Answer 13

have a hydrophilic head + hydrophobic tails

Question 14

hydrophilic

Answer 14

interacts with water

Question 15

hydrophobic

Answer 15

repels water