Practice Questions

Question 1

Describe the role of fatty acids in the body

Answer 1

they are regulators of inflammation and blood clotting

Question 2

Which is NOT a primary risk factor for heart disease?a) high blood pressureb) obesityc) exercise d) diabetes

Answer 2

c) exercise

Question 3

Name 3 qualities that fat add to food

Answer 3

texture, flavour, and aroma

Question 4

To prevent the formation of ketone bodies from fatty acid breakdown, which nutrient needs to be present in sufficient quantity?

Answer 4

carbohydrates

Question 5

Describe why saturated fat is associated with increased risk of cardiovascular diseases

Answer 5

saturated fat decreases LDL receptors on the cell surface, increasing the levels of LDL cholesterol in the blood

Question 6

Of the following dietary lipids, what one is most heart healthy?a) lardb) margarinec) canola oild) coconut oil

Answer 6

c) canola oil

Question 7

What is the upper limit of fat, in grams, that should be consumed by a healthy person requiring 2500 kcal per day?

Answer 7

97

Question 8

Alpha-linolenic acid is an example of what fatty acid?

Answer 8

omega-3 fatty acid

Question 9

What substance is released into the small intestine to aid in the digestion and absorption of fat?

Answer 9

bile

Question 10

During triglyceride metabolism, what is the fate of the glycerol backbone?

Answer 10

it is used to produce a small amount of glucose or energy

Question 11

After water soluble nutrients are absorbed, they are carried to the _____ through the ______.

Answer 11

liver, hepatic portal vein

Question 12

What type of cancer is associated with consumption of saturated fat from red meat

Answer 12

increased risk of colon cancer is associated wit the consumption of saturated fat from red meat

Question 13

The lymphatic system absorbs

Answer 13

fat soluble nutrients too large to be absorbed into the portal vein

Question 14

A meal providing 630 calories contains 6g of saturated fats, 1 g of monounsaturated fats, and 2g of polyunsaturated fats. What percentage of energy is supplied by the lipids?

Answer 14

13%

Question 15

Bile, vitamin D, and some hormones such as testosterone and estrogen are derived from..

Answer 15

cholesterol

Question 16

Chylomicrons

Answer 16

NAME?

Question 17

Which enzyme promotes the uptake of fatty acids and glycerol by cells to be used as fuel or for storage?

Answer 17

lipoprotein lipase

Question 18

What is needed for cells to take up low-density lipoproteins?

Answer 18

LDL receptors located on the surface of cells

Question 19

What are the precursors for eicosanoid formation?

Answer 19

omega-3 and omega-6 fatty acids

Question 20

Describe vitamins (4)

Answer 20

Vitamins are only needed in small amounts.Vitamins are organic molecules.Vitamins do not provide any energy.Vitamins are used to regulate body processes.

Question 21

What is the name of a study that feeds a diet devoid of a nutrient until signs of a deficiency appear, and then adds the nutrient back to the diet to a level at which symptoms disappear?

Answer 21

A deletion-repletion study

Question 22

What are the 4 energy yielding substances?

Answer 22

carbohydrates, proteins, fats, and alcohol (ethanol)

Question 23

What term describes consuming too little or too much of one or more nutrients or energy?

Answer 23

malnutrition

Question 24

Balance

Answer 24

mixing and matching foods in proportions that allow you to get enough of the nutrients you need

Question 25

Which two nutrients each make up 16% of human body weight?

Answer 25

proteins and fats

Question 26

Which nutrient is most abundant in the body?

Answer 26

carbohydrates

Question 27

Choosing broccoli instead of French fries represents what dietary principle?

Answer 27

nutrient density

Question 28

Homeostasis is the sum of all chemical reactions that take place in a living organism. (T/F)

Answer 28

FALSE