Unit 9

Question 1

For which of the following vitamins is the amino acid tryptophan the starting material?

Answer 1

niacin

Question 2

What type of protein does the body’s immune system need to manufacture in order to fight influenza and develop immunity?

Answer 2

antibodies

Question 3

Carbohydrate, fat, and protein all offer energy, but protein also offers which of the following elements?

Answer 3

nitrogen

Question 4

If you consume more animal protein, of which of the following nutrients is your intake likely to be higher?

Answer 4

saturated fat

Question 5

Which of the following symptom is representative of kwashiorkor disease?

Answer 5

enlarged, fatty liver

Question 6

Which food item is considered a source of vitamin B12 but may also contribute to toxic levels of iodine in the body?

Answer 6

seaweed

Question 7

In North America, which of the following groups has a high rate of protein-energy malnutrition?

Answer 7

**
AIDS patients

bulimia nervosa sufferers

adults with kidney disease

Question 8

Which of the following vitamins is typically lacking in a poorly-planned vegetarian diet?

Answer 8

vitamin D

Question 9

What medical condition results from an excess of acid in the blood?

Answer 9

acidosis

Question 10

Sound nutrition authorities acknowledge that well-chosen vegetarian diets are consistent with good health and can meet nutrient needs.

Answer 10

true

Question 11

Which of the following conditions can cause denaturation of proteins?

Answer 11

heat exposure

Question 12

What is the name given to the compounds that maintain acid-base balance in the blood?

Answer 12

buffer

Question 13

Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. Which of the following will an individual develop should any part of this system begin to fail?

Answer 13

edema

Question 14

Amino acids are broken down, then incorporated by the liver into which of the following substances?

Answer 14

urea

Question 15

Which of the following components is a protein catalyst that acts on other substances to change them chemically?

Answer 15

enzyme

Question 16

What type of vegetarian diet can result in malnutrition and even death?

Answer 16

macrobiotic diet

Question 17

Which of the following amino acids is considered indispensable/essential?

Answer 17

valine

Question 18

Vegetarians have significantly higher rates of certain cancers than the general population.

Answer 18

false

Question 19

Which of the following behaviours can help athletes achieve bigger muscles?

Answer 19

exercising rigorously

Question 20

What is the name for an infection of the digestive tract that causes diarrhea, which further depletes minerals from the body?

Answer 20

dysentry

Question 21

Phenylketonuria is an inherited disease that disables the body from metabolizing which of the following amino acids?

Answer 21

phenylalanine

Question 22

Your friend avoids acid foods like tomatoes and orange juice because she believes they give her an acid stomach. What information would you give her in response to that?

Answer 22

No food is acidic enough to make the stomach acid stronger.

Question 23

Which of the following health conditions is a hereditary amino acid disorder?

Answer 23

sickle cell disease

Question 24

Which of the following foods has the highest protein digestibility-corrected amino acid score (PDCAAS)?

Answer 24

tuna

Question 25

Starvation always incurs wasting of lean body tissue as well as loss of fat.

Answer 25

true

Question 26

How many amino acids are considered to be indispensable/essential?

Answer 26

9

Question 27

Your friend is a vegetarian who consumes large quantities of soy products in the place of meat. Your friend is at risk of developing a deficiency of what nutrient?

Answer 27

iron

Question 28

Which of the following components accounts for the differences between amino acids?

Answer 28

the side chain

Question 29

Which of the following vitamins assists with the absorption of iron from plant-based foods?

Answer 29

vitamin C

Question 30

What does the term protein turnover mean?

Answer 30

replacing worn-out cells

Question 31

Which of the following groups of people is susceptible to losing more nitrogen than they are taking in?

Answer 31

surgery patients

Question 32

In determining its recommendation for daily protein intake needs, the Dietary Reference Intakes (DRI) committee made use of studies related to what topic?

Answer 32

nitrogen balance

Question 33

Which of the following vitamins is provided by meat but is insufficient in plant-based diets?

Answer 33

vitamin B12

Question 34

Which of the following cooking methods would you use to maximize the digestibility of protein?

Answer 34

boiling

Question 35

The Dietary Reference Intake (DRI) for protein depends on which of the following factors?

Answer 35

body weight

Question 36

What was the major protein source most available to Canadians in 2009?

Answer 36

eggs

Question 37

Which of the following food items provides all of the essential amino acids?

Answer 37

poached egg

Question 38

Plant-based diets are often lower in which of the following fat sources?

Answer 38

saturated fats

Question 39

The protein digestibility-corrected amino acid score (PDCAAS) takes which of the following factors into account?

Answer 39

the quality of food protein

Question 40

The DRI committee recommends that iron intake for vegetarians be adjusted upward by what amount in comparison to the general population?

Answer 40

1.8

Question 41

Which of the following symptoms would a child with marasmus exhibit?

Answer 41

dry, thin, and wrinkled skin

Question 42

According to the Dietary Reference Intakes (DRI) committee, minimum protein intake should be what percentage of total Calories?

Answer 42

10%

Question 43

Amino acid supplements are easy to digest and can relieve the digestive system from overworking.

Answer 43

false

Question 44

The growth of well-fed vegetarian children is similar to that of their meat-eating peers.

Answer 44

true

Question 45

For the majority of exercisers, adding excess protein or amino acid supplements to an adequate diet will stimulate muscle building.

Answer 45

false