Exam #3 Review

Question 1

The appetite-suppressing hormone produced by the adipose tissues is called ________.

a.) ghrelin
b.) thyroxine
c.) leptin
d.) insulin
e.) endorphin

Answer 1

c.) leptin

Question 2

The major role that the hormone ghrelin plays in eating is to signal:
a.) appetite when receiving an external stimulus.
b.) the breakdown of stored fat molecules.
c.) hunger when the stomach is empty.
d.) satiation several hours after a meal.
e.) satiation when the stomach is full.

Answer 2

c.) hunger when the stomach is empty.

Question 3

What component of energy expenditure is a person able to influence or control?
a.) resting metabolic rate
b.) basal metabolic rate
c.) thermic effect of food
d.) food intake
e.) voluntary activities

Answer 3

e.) voluntary activities

Question 4

A woman is using behavior change methods to assist in changing her eating habits to lose weight. Which of the following behaviors would help her lose weight?
a.) Choosing to dine with companions who prefer comfort food
b.) Skipping meals to meet her daily calorie intake target
c.) Buying food from vending machines, fast-food restaurants, and convenience stores
d.) Using large plates, cups, and utensils for eating
e.) Keeping a food diary of what she eats

Answer 4

e.) Keeping a food diary of what she eats

Question 5

All of these are complications of obesity surgery except:
a.) infection
b.) low blood glucose
c.) dehydration
d.) nausea
e.) high blood pressure

Answer 5

e.) high blood pressure

Question 6

Instant changes in body weight are most likely the result of all of the following except:
a.) changes in lean tissue such as muscles
b.) changes in bone minerals.
c.) changes in electrolyte and fluid balance
d.) change in fat stores
e.) changes in body fluid content

Answer 6

d.) change in fat stores

Question 7

One of the major benefits of physical activity for weight management is:
a.) the ability to eat high-calorie snacks.
b.) an ability to maintain an elevated BMR for several hours after exercise.
c.) a significant reduction in continuous cravings for food.
d.) an increase in lean muscle tissue that burns more energy.
e.) an increase in appetite immediately after exercise.

Answer 7

d.) an increase in lean muscle tissue that burns more energy.

Question 8

Fad diets are successful in the short term because they:
a.) are easy to follow.
b.) provide the best balance of energy nutrients for weight loss.
c.) induce a calorie deficit.
d.) reduce satiety and hence appetite.
e.) alter the body’s metabolism.

Answer 8

c.) induce a calorie deficit.

Question 9

Foods that are high in ________ often lead to weight gain.
a.) plant proteins
b.) energy density
c.) nutrient density
d.) nonnutritive sweeteners
e.) complex carbohydrates

Answer 9

b.) energy density

Question 10

A body mass index of 25.0 to 29.9 in an adult indicates ___________.
a.) morbid obesity
b.) overweight
c.) underweight
d.) obesity
e.) normal weight

Answer 10

b.) overweight

Question 11

Symptoms of vitamin A deficiency include:
a.) night blindness
b.) facial ties
c.) joint pain
d.) frequent urination
e.) loosened teeth

Answer 11

a.) night blindness

Question 12

Which of the following is a source of vitamin K?
a.) Antibiotics
b.) Cast-iron pans
c.) Intestinal bacteria
d.) Spring water
e.) Sunlight

Answer 12

c.) Intestinal bacteria

Question 13

A seal from a commercial laboratory on a supplement may indicate all of the following EXCEPT:
a.) the ingredients are present in the quantities listed on the label.
b.) the product dissolves readily.
c.) the product is free of unwanted substances.
d.) the product is safe when taken in the dosage listed.
e.) the product contains the ingredients it states it does.

Answer 13

d.) the product is safe when taken in the dosage listed.

Question 14

Deficiencies of vitamin A, D, E, and K results from:
a.) deficient intakes of water-soluble vitamins.
b.) any disease that suppresses the immune system.
c.) taking blood thinners like Warfarin.
d.) any disease that causes fat malabsorption.
e.) chemotherapy and radiation.

Answer 14

d.) any disease that causes fat malabsorption.

Question 15

Water-soluble vitamins:
a.) are soluble in body fluids but insoluble in cooking water.
b.) often result in toxicities.
c.) are easily secreted in the urine.
d.) are stored in body tissues to a large extent.
e.) are not damaged by heat or oxygen exposure.

Answer 15

c.) are easily secreted in the urine.

Question 16

Vitamin C is also known as ________.
a.) phylloquinone
b.) folic acid
c.) tocopherol
d.) cholecalciferol
e.) ascorbic acid

Answer 16

e.) ascorbic acid

Question 17

The main function of vitamin K is to:
a.) quench free radicals
b.) help activate proteins that help clot the blood.
c.) act as an antioxidant in cell membranes
d.) influence body functions through its regulation of the genes.
e.) regulate blood calcium levels.

Answer 17

b.) help activate proteins that help clot the blood.

Question 18

Which of the following foods in not a source of vitamin C?
a.) Milk
b.) Citrus fruits
c.) Green peppers
d.) Broccoli
e.) Strawberries

Answer 18

a.) Milk

Question 19

Which source of vitamin A does NOT pose any toxicity risk?
a.) Liver
b.) A high-potency multi-vitamin
c.) Instant breakfast drink
d.) Sweet potatoes
e.) Fortified milk

Answer 19

d.) Sweet potatoes

Question 20

All vitamins are essential nutrients
a.) True
b.) False

Answer 20

b.) False

Question 21

Compounds made of charged particles that dissolve in water are known as ________.
a.) electrolytes
b.) acids
c.) ions
d.) tannins
e.) salts

Answer 21

c.) ions

Question 22

How much sodium is consumed by a person who eats two grams of salt?
a.) 1000 mg
b.) 800 mg
c.) 2000 mg
d.) 400 mg
e.) 1200 mg

Answer 22

b.) 800 mg

Question 23

What prevents blood iron concentrations from rising too high?
a.) Tannins
b.) Hemoglobin
c.) Thyroxine
d.) Nonheme iron
e.) Hepcidin

Answer 23

e.) Hepcidin

Question 24

The kidneys filters wastes from the blood and then excrete them as urine. This process is an example of how the body uses water as a(an) _____________.
a.) Lubricant
b.) Coolant
c.) Cleansing agent
d.) Universal agent
e.) Cushioning agent

Answer 24

c.) Cleansing agent

Question 25

Magnesium plays a role in all the following EXCEPT:
a.) immune function
b.) bone mineralization
c.) nerve function
d.) energy metabolism
e.) muscle contractions

Answer 25

d.) energy metabolism

Question 26

When your body signals thirst, it is important to:
a.) drink a sports beverage to restore electrolyte imbalance.
b.) drink plenty of plain water to prevent water intoxication.
c.) ignore the signal because you will get adequate fluids at your next meal.
d.) drink fluids to avoid dehydration from occurring.
e.) consider drinking fluids soon to prevent dehydration from progressing.

Answer 26

d.) drink fluids to avoid dehydration from occurring.

Question 27

The first sign of dehydration is ________.
a.) confusion
b.) thirst
c.) fatigue
d.) headache
e.) stomachache

Answer 27

b.) thirst

Question 28

What does DEXA scan measure or assess?
a.) Bone density
b.) Calcium levels in bones
c.) Collagen production
d.) Prior bone fractures
e.) Neurotransmitter activity

Answer 28

a.) Bone density

Question 29

During outdoor physical activity, the body maintains its temperature by:
a.) passing inhaled oxygen from the lungs to the blood.
b.) using metabolic water as a coolant.
c.) sweating to release body heat.
d.) urinating to remove excess body water.
e.) directing blood to the body’s core for cooling.

Answer 29

c.) sweating to release body heat.

Question 30

The principal food source of chloride is __________.
a.) cereal
b.) dairy products
c.) meat
d.) sugar
e.) salt

Answer 30

e.) salt