PART 1

Question 1

LIPIDS are insoluble in _____?

Answer 1

water

Question 2

LIPIDS are soluble in ________?

Answer 2

organic solvents

Question 3

why are lipids insoluble in water

Answer 3

because of the ester bonds. they may be polar but are buried in a non polar environment

Question 4

A triester of glycerol with three fatty acids.

Answer 4

Triglyceride

Question 5

why are triglycerides hydrophobic?

Answer 5

because of the long non polar hydrocarbon chain in the fatty acids

Question 6

Fatty acids in triglycerides practically all are __________ carboxylic acids.

Answer 6

unbranched

Question 7

Fatty acids in triglycerides range in size from about __to ___ carbons.

Answer 7

10 to 20

Question 8

single carbon bond means

Answer 8

saturated fat

Question 9

double carbon bonds means

Answer 9

unsaturated fat

Question 10

2 types of unsaturated fat

Answer 10

Cis and Trans

Question 11

in unsaturated fats, if carbons are on same side means?

Answer 11

cis

Question 12

in unsaturated fats, if carbons are on opposite side/crossed

Answer 12

trans

Question 13

In most fatty acids that have carbon-carbon double
bonds, the ______ predominate.

Answer 13

cis isomers

Question 14

higher number of carbons in hydrocarbon chain means?

Answer 14

higher melting point

Question 15

lower number of DOUBLE BONDED CARBONS means?

Answer 15

lower melting points

Question 16

unsaturated fats at room temperature is what?

Answer 16

liquid —– oil

Question 17

saturated fats at room temperature is what?

Answer 17

solid/semisolid —- fat

Question 18

the process where you reduce the double bonds of unsaturated triglycerides using H2
/transition metal catalyst

Answer 18

Hydrogenation

Question 19

Result of hydrogenation

Answer 19

hardening