23. Lipids

Which of the following compounds is not a steroid hormone?

Which of the following compounds is not a bile acid?

 Identify each of the following as a fatty acid, soap, triacylglycerol, wax, glycerophospholipid, sphingolipid, or steroid: (15.1, 15.2, 15.3, 15.5, 15.6)

b. cholesterol

 Identify the components (1 to 6) contained in each of the following lipids (a to d): (15.1, 15.2, 15.3, 15.5, 15.6)

1. glycerol

2. fatty acid

3. phosphate

4. amino alcohol

5. steroid nucleus

6. sphingosine

a. estrogen

Match the lipoprotein (1 to 4) with its description (a to d). (15.6)

1. chylomicrons

2. VLDL

3. LDL

4. HDL

b. “bad” cholesterol

Draw the structure for cholesterol.

How do chylomicrons differ from VLDL?

Which of the following are steroid hormones?

a. cholesterol

b. cortisol

c. estradiol

d. testosterone

Draw a possible hydrogen bond between a molecule of cholesterol and a molecule of water.