Chapter 5 Quiz: The Lipids: Triglycerides, Phospholipids, and Sterols

Fatty acids vary in their degree of saturation or unsaturation due to the number of

a. Carbons in the chain.

b. kCalories provided.

c. Double bonds.

d. Oxygen atoms

double bonds

What is the primary role of triglycerides?

a. They remove waste from the body.

b. They transport fluids in the body.

c. They provide the cells with energy.

d. They break down food in the stomach.

they provide the cells with energy

Which of the following fish should be avoided because of its high mercury content?

a. Salmon and tilapia

b. Swordfish and tilefish

c. Cod and sole

d. Most shellfish

swordfish and tilefish

Which types of dietary fats can increase blood LDL concentrations ?

a. Polyunsaturated fatty acids, monounsaturated fatty acids

b. Omega-3 fatty acids, cis-fatty acids

c. Fiber, omega-6 fatty acids

d. Saturated fatty acids, trans-fatty acids

saturated fatty acids, trans-fatty acids

Which of the following members of the lipid family are soluble in both water and fat?

a. Triglycerides

b. Saturated fats

c. Sterols

d. Phospholipids

phospholipids

Which of the following behave more like saturated fats, increasing blood cholesterol, and heart disease risk?

a. Omega-3 fatty acids

b. Omega-6 fatty acids

c. Conjugated linoleic acids

d. Trans-fatty acids.

trans-fatty acids

Which of the following blood lipids is linked most directly to heart disease?

a. High-density lipoprotein (HDL) cholesterol

b. Low-density lipoprotein (LDL) cholesterol

c. Linolenic acid

d. Linoleic acid

low-density lipoprotein (LDL) cholesterol

The function of bile in fat digestion is to

a. Initiate fat digestion in the stomach.

b. Neutralize stomach acidity.

c. Emulsify fats into smaller particles.

d. Hydrolyze fatty acids from triglycerides

emulsify fats into smaller particles

Which of the following happens to the bile that is reabsorbed by the small intestine?

a. The bile is broken down and sent to the kidneys as waste.

b. The bile is broken down, sent to the lymphatic system, and discarded as waste.

c. The bile is stored in the body's fat cells.

d. Most of the bile is reabsorbed from the small intestine and recycled.

most o the bile is reabsorbed from the small intestine and recycled

The position of the double bond closest to the methyl (CH3) end of fatty acid is described by a(n) _____ number.

a. Omega

b. Theta

c. Alpha

d. Poly

omega

When food is consumed, in which of the following organs is excess energy stored?

a. Adipose cells

b. Liver

c. Stomach

d. Spleen

adipose cells

The traditional Mediterranean diet emphasizes all of the following foods EXCEPT:

a. Whole grains

b. Red meats

c. Nuts

d. Fruits and vegetables

red meats

If a fat source is counted toward an individual's discretionary kcalories, what does this mean?

a. This fat source should be a consistent part of a person's diet.

b. This fat source is high in saturated fat, and its intake should be limited.

c. This fat source supplies essential fatty acids.

d. This fat source should account for 30 percent of the daily fat intake.

this fat source is high in saturated fat, and its intake should be limited

When a fatty acid is described as being saturated, it means that it

a. Has limited chemical stability.

b. Contains only single bonds between its carbon atoms.

c. Contains multiple double bonds between its carbon atoms.

d. Contains three bonds linking each carbon atom.

contains only single bonds between its carbon atoms

A desirable blood lipid profile would include a(n)

a. LDL cholesterol of <100 milligrams per deciliter.

b. LDL cholesterol of >150 milligrams per deciliter.

c. Total cholesterol of >200 milligrams per deciliter.

d. HDL cholesterol of <30 milligrams per deciliter.

LDL cholesterol of < 100 milligrams per deciliter