Lipid Structure and Function

Question 1

contain a phosphate and alcohol that comprise the polar head group, joined to a hydrophobic fatty acid tail by phosphodiester linkages

Answer 1

phospholipid

Question 2

tails that have only single bonds

Answer 2

saturated fatty acid

Question 3

includes one or more double bonds

Answer 3

unsaturated fatty acid

Question 4

characterized by having four cycloalkane rings fused together: 3 cyclohexane and 1 cyclopentate

Answer 4

steroids

Question 5

keeps the CM from solidifying at low temps and keeps together at high temps

Answer 5

Cholesterol

Question 6

unsaturated carboxylic acids derived from arachadonic acid. Act as paracrine and autocrine signaling molecules

Answer 6

Prostaglandins

Question 7

composed of three fatty acids bonded by ester linkages to glycerol

Answer 7

triglycerides

Question 8

ester hydrolysis of triacylglycerols using a strong base

Answer 8

saponification

Question 9

lowers the surface tension at the surface of a liquid, serving as a detergent or emulsifier

Answer 9

surfactant