MULTIPLE CHOICE

1.Approximately what percentage of the lipids in foods are triglycerides?

a.5 percent

b.30 percent

c.95 percent

d.100 percent

2.In which one of the following forms are most dietary lipids found?

a.sterols

b.glycerols

c.triglycerides

d.monoglycerides

3.What percentage of stored body fat is in the form of triglycerides?

a.2 percent

b.50 percent

c.78 percent

d.99 percent

4.What are lipids that are solid at room temperature known as?

a.oils

b.fats

c.omegas

d.glycerols

5.What are lipids that are liquid at room temperature known as?

a.oils

b.fats

c.omegas

d.glycerols

6.What is the chemical composition of fats?

a.hexose polymers

b.glycogen granules

c.fatty acids and glycerol

d.combinations of long-chain fatty acids

7.A compound composed of carbon, hydrogen, and oxygen with 3 fatty acids attached to a molecule of glycerol would be known as which of the following?

a.a diglyceride

b.a triglyceride

c.a phospholipid

d.a monoglyceride

8.What compound is composed of 3 fatty acids and glycerol?

a.steroid

b.lecithin

c.triglyceride

d.monoglyceride

9.How many double bonds are present in stearic acid?

a.0

b.1

c.2

d.3

10.Which of the following is a property of dietary lipids?

a.Omega-3 fatty acids are always unsaturated.

b.Lipids that are solid at room temperature are classified as oils.

c.The fatty acids in triglycerides may be of chain length 2 to 25 carbons.

d.The most common fatty acid chain length in triglycerides is 10 carbons.