are responsible for the lipid bilayer of cell membranes.

1. 1. 1. 1. phospholipids
         2. cholesteryl esters
         3. free fatty acids
         4. triglycerides

Question 7

A fatty acid containing two or more carbon-carbon double bonds in its backbone is a(n)            

fatty acid.

1. saturated
2. unsaturated
3. monounsaturated
4. polyunsaturated
5. a and c
6. b and d Answer Key: F

Question 8

• What does the alpha (α) end of a fatty acid contain?

1. a nitrogen atom
2. a methyl group
3. a phosphorus atom
4. a carboxylic acid group

Question 9

The basic goal of triglyceride digestion is to separate most of the fatty acids from the             

molecule they are attached to.

1. glucose
2. sterol
3. glycerol
4. phosphate

Question 10

What hormone stimulates the gallbladder to contract and release bile into the duodenum?

1. 1. cholecystokinin (CCK)
   2. secretin
   3. glucagon
   4. insulin