Chapters 9-12 Flashcards
Megadoses of vitamins are
safe to take, if the vitamins are water soluble
useful for preventing chronic diseases
available naturally from a wide variety of foods
most often consumed from supplements
most often consumed from supplements
Vitamins
are metabolized to yield energy
occur in gram amounts in foods
are organic molecules
are macronutrients
are organic molecules
People who are unable to absorb fat are likely to develop a __________ deficiency.
vitamin A
folate
vitamin B-12
riboflavin
vitamin A
Enriched grain products have specific amounts of __________ added during processing.
vitamin C
vitamin A
vitamin B-12
thiamin
thiamin
Which of the following foods is not a rich source of beta-carotene?
Beef
Carrots
Squash
Sweet potato
Beef
A deficiency of vitamin A contributes to
inadequate blood clotting
night blindness
sickle cell anemia
pellagra
night blindness
The most active form of vitamin A in the body is
retinol
retinal
retinoic acid.
cholecalciferol
retinol
Children who lack vitamin D can develop
pellagra
rickets
beriberi
scurvy
rickets
The most active form of vitamin D is called
cholecalciferol.
calcitriol
calcidiol
ergocalciferol.
calcitriol
Vitamin D deficiency is most likely in
an infant being breastfed
a child living in Florida
a child who drinks fat-free milk
an infant exposed to sunlight only 30 minutes per day
an infant being breastfed
Vitamin K can be produced by
skin exposure to ultraviolet radiation.
hydrolysis of seawater
intestinal bacteria
conversion of lactic acid into lactate
intestinal bacteria
Which of the following vitamins is the most potent antioxidant?
Folate
Vitamin K
Vitamin E
Vitamin B-6
Vitamin E
The form of vitamin K found in spinach and kale is called
menaquinone
phylloquinone
menadione.
alpha-tocopherol
phylloquinone
. __________ may interfere with blood thinning medications, so supplements should generally be avoided.
Vitamin A
Vitamin D
Vitamin E
Vitamin K
Vitamin K
Which of the following descriptions of cystic fibrosis is false?
A genetic condition affecting the respiratory and digestive systems
A condition leading to excess mucus secretion and buildup
A condition likely to cause a deficiency in fat-soluble vitamins
A condition that can be cured by taking antioxidant supplements
A condition that can be cured by taking antioxidant supplements
Which of the following is not a fat soluble vitamin
vitamin A
folate
vitamin E
vitamin D
folate
A substance with an unpaired electron is called a______
oxidant
free radical
antioxidant
vitamin
free radical
Osteomalacia is the adult form of vitamin A deficiency
True
False
False
The form of vitamin K found in spinach and kale is called
menadione
menaquinone
alpha-tocopherol
phylloquinone
phylloquinone
Vitamin E is an antioxidant
true
false
true
The form of vitamin K found in spinach and kale is called
menadione
menaquinone
alpha-tocopherol
phylloquinone
phylloquinone
Which of the following is not a rich source of beta-carotene
beef
sweet potato
squash
carrot
beef
Children who lack vitamin D can develop
beriberi
pellagra
scurvy
rickets
rickets
Megadoses of vitamins are
safe to take, if the vitamins are water soluble
most often consumed from supplements
available naturally from a wide variety of foods
useful for preventing chronic disease
most often consumed from supplements
Lack of ____ causes scurvy
thiamin
riobflavin
vitamin C
vitamin B 12
vitamin C
Major food sources of vitamin B-12 include
grain products
meat and milk products
fruits and vegetables
nuts and seeds
meat and milk products
Diets that lack niacin can lead to
rickets
beriberi
pellagra
pernicious anemia
pellagra
To reduce the likelihood of giving birth to babies with neural tube defects, women of childbearing potential should obtain adequate
folate
biotin
cellulose
niacin
folate
____ is part of pyridoxal phosphate (PLP), the coenzyme necessary for transamination and deamination reactions.
Vitamin B6
Vitamin B-12
Niacin
Riboflavin
Vitamin B6
Physicians often prescribe therapeutic doses of ____ to treat abnormal blood lipid levels.
vitamin C
vitamin B-12
folate
niacin
niacin
____ is a component of coenzyme A.
Vitamin B-6
Riboflavin
Pantothenic acid
Biotin
Pantothenic acid
Which of the following statements is false?
Intrinsic factor is needed for vitamin B-12 absorption
Vitamin B-12 deficiency is common among older adults
Patients with pernicious anemia are treated with high doses of folic acid
If untreated, pernicious anemia can be deadly
Patients with pernicious anemia are treated with high doses of folic acid
Which of the following foods is a rich source of vitamin C?
Whole milk
Egg white
Hamburger patty
Green pepper
Green pepper
Eating large amounts of raw egg whites can cause a ____ deficiency.
folate
biotin
pantothenic acid
riboflavin
biotin
Deficiency in which of the following vitamins can lead to elevated blood homocysteine?
Folate, vitamin B-12, and vitamin B-6
Thiamin, niacin, and vitamin B-12
Vitamin B-6, folate, and riboflavin
Vitamin C, niacin, and vitamin B-12
Folate, vitamin B-12, and vitamin B-6
Which of the following practices may reduce your risk of cancer?
Eating fruits and vegetables
Eating grilled meats regularly
Smoking no more than 10 cigarettes daily
Consuming two to three standard alcoholic drinks daily
Eating fruits and vegetables
____ is essential for neurotransmitter and phospholipid synthesis.
Lipoic acid
Choline
Inositol
Taurine
Choline
Glossitis and cheilosis are clinical signs of a ____ deficiency.
vitamin B-6
pantothenic acid
riboflavin
folate
riboflavin
___ can be made from the amino acid tryptophan.
Vitamin B-6
Vitamin C
Thiamin
Niacin
Niacin
Physicians often prescribe angiotensin-converting enzyme (ACE) inhibitors to treat high blood pressure.
T/F
True
All of the following are common signs of dehydration EXCEPT:
Clear urine color
Dry or sticky mouth
sunken eyes
Heart palpitations
Clear urine color
Major minerals are called “major” not because of their relative importance to health, but because they are needed in greater amounts in the diet.
True
False
True
Which of the following is NOT a major mineral?
Zinc
Calcium
Sulfur
Chloride
Zinc
Select the trace mineral that is important for the function of over 300 enzymes.
Iron
Selenium
Fluoride
Zinc
Zinc
Individuals with hereditary hemochromatosis absorb too much
copper
Zinc
Iron
molybdenum
Iron
Fluoridated drinking water provides approximately 80% of fluoride intake.
True
False
True
A rare inherited disorder characterized by accumulation of toxic amounts of copper in the body.
Group of answer choices
Wilson disease
Keshan disease
Cretinism
Goiter
Wilson disease
Seaweed is a good dietary source for:
Iron
Manganese
Copper
Fluoride
Manganese
Which of the following lists includes only trace minerals?
Selenium, sodium, zinc, and iodide
Iron, iodide, selenium, and chromium
Calcium, copper, chromium, and phosphorus
Magnesium, molybdenum, potassium, and iron
Iron, iodide, selenium, and chromium
Iron absorption can be increased by
consuming unleavened bread with the source of iron
drinking tea with the source of iron
adding a food that contains vitamin C to the meal
taking a calcium supplement with the meal.
adding a food that contains vitamin C to the meal
Sources of heme iron include
fortified breakfast cereal
roast beef
fresh spinach
raw orange segments.
roast beef
Worldwide, which of the following nutrient deficiencies is the most common cause of preventable intellectual disability?
Chromium
Iodine
Iron
Zinc
Iodine
Which of the following statements is false?
In the United States, milk is usually fortified with iodide
Iodine is necessary for normal thyroid function
Having too much iodine in the diet can cause a goiter
Saltwater fish and other seafood are dietary sources of iodine
In the United States, milk is usually fortified with iodide
Which of the following statements is false?
Zinc is important for the proper functioning of over 300 enzymes
Zinc deficiency can stunt growth and lead to dwarfism
Zinc deficiency can cause a lack of appetite and impaired sense of taste.
Zinc intake is critical during pregnancy for preventing cretinism
Zinc intake is critical during pregnancy for preventing cretinism
Selenium deficiency can lead to
Group of answer choices
Wilson disease
selenosis.
microcytic anemia
Kashin-Beck disease
Kashin-Beck disease
Which nutrient can remineralize the tooth surface and prevent cavities?
Chromium
Fluoride
Iron
Iodide
Fluoride
Chromium is important for
maintaining proper carbohydrate and lipid metabolism
synthesizing hemoglobin and myoglobin.
supporting normal thyroid function
developing healthy teeth.
maintaining proper carbohydrate and lipid metabolism
The presence of _____ in a food decreases zinc bioavailability.
phytic acid
glutamic acid
ascorbic acid
lactic acid
phytic acid
Garlicky body odor is a sign of
iron deficiency
hemochromatosis.
selenosis
iodine toxicity
selenosis
Which of the following enzymes contains molybdenum?
Alcohol dehydrogenase
Sucrase
Lactase
Sulfite oxidase
Sulfite oxidase
Antoine’s eyes have Kayser-Fleischer rings. Based on this information, Antoine has
iron depletion disease
Wilson disease
Kashan-Beck disease
Keshan disease.
Wilson disease
People who have hereditary hemochromatosis absorb too much
iron
copper.
zinc
vanadium
iron.
In the United States, table salt is often fortified with
iron
selenium
zinc
iodine
iodine
what is the trace mineral that has this function:
Component of an antioxidant system
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
selenium
what is the trace mineral that has this function:
Component of thyroid hormones
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
iodine
what is the trace mineral that has this function:
Increases resistance of tooth enamel to cavity formation and stimulates bone formation
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
fluoride
what is the trace mineral that has this function:
enhances insulin action
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
chromium
what is the trace mineral that has this function:
cofactor for certain enzymes, including some involved in carbohydrate metabolism
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
manganese
what is the trace mineral that has this function:
Component of hemoglobin and myoglobin that carries oxygen, energy generation, and immune system function
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
iron
what is the trace mineral that has this function:
Component of numerous enzymes
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
zinc
what is the trace mineral that has this function:
promotes iron metabolism, component of antioxidant enzymes, and component of enzymes involved in connective tissue synthesis
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
copper
what trace mineral deficiency is characterized by:
cretinism
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
iodine
what trace mineral deficiency is characterized by:
keshan disease, kashin-beck disease, selenosis
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
selenium
what trace mineral deficiency is characterized by:
wilson disease
iodine
selenium
fluoride
iron
zinc
copper
chromium
manganese
copper
Worldwide, which of the following nutrient deficiencies is the most common cause of preventable intellectual disability
a. chromium
b. iodine
c. iron
d. zinc
b. iodine
Which of the following statements is false?
a. zinc is important for the proper functioning of over 50 enzymes
b. zinc deficiency can stunt growth and lead to dwarfism
c. zinc deficiency can cause a lack of appetite and impaired sense of taste
d. zinc intake is critical during pregnancy for preventing cretinism
d. zinc intake is critical during pregnancy for preventing cretinism
Selenium deficiency can lead to
a. Wilsons disease
b. selenosis
c. microcytic anemia
d. kashin-beck disease
d. kashin-beck disease
Chromium is important for
a. maintaining proper carbohydrate and lipid metabolism
b. synthesizing hemoglobin and myoglobin
c. supporting normal thyroid function
d. developing healthy teeth
a. maintaining proper carbohydrate and lipid metabolism
The presence of ______ in a food decreases zinc bioavailability
a. physic acid
b. glutamic acid
c. ascorbic acid
d. lactic acid
a. phytic acid
Which of the following enzymes contains molybdenum?
a. alcohol dehydrogenase
b. sucrase
c. lactase
d. sulfite oxidase
d. sulfite oxidase
People who have hereditary hemochromatosis absorb too much
a. iron
b. copper
c. zinc
d. vanadium
a. iron
True/False: The bioavailability of heme iron is greater than that of nonheme iron
True
True/False: Symptoms of zinc deficiency include the inability to sense the taste of blood
True
True/False: Deficiencies in selenium are common in the United States
False
iron containing component of hemoglobin and myoglobin
heme
myoglobin
cytochrome
heme iron
heme iron
iron-containing protein in muscle cells that control oxygen uptake from RBCs
heme
myoglobin
cytochrome
heme iron
myoglobin
group of proteins necessary for certain chemical reactions involved in the release of energy from macronutrients
heme
myoglobin
cytochrome
heme iron
cytochrome
form of iron found in meat that is absorbed efficiently
heme
myoglobin
cytochrome
heme iron
nonheme iron
heme iron
form of iron that is not absorbed as efficiently; found in meat, veggies, grains, supplements, and fortified or enriched foods
heme
myoglobin
cytochrome
heme iron
nonheme iron
nonheme iron
major storage form of iron; serum concentrations are used to assess iron status
heme
myoglobin
ferritin
heme iron
ferritin
transport protein for iron in the bloodstream
ferritin
transferrin
transferrin receptor
total body iron
transferrin
membrane-bound receptor that attaches to iron; used to measure iron status
ferritin
transferrin
transferrin receptor
total body iron
transferrin receptor
method of accessing iron status; the ratio of blood transferrin receptor to ferritin
ferritin
transferrin
transferrin receptor
total body iron
total body iron
third stage of iron deficiency, characterized by a lack of RBCs or the production of RBCs that do not contain enough hemoglobin
iron deficiency anemia
hypochromic
microcytic
iron overload
iron deficiency anemia
inherited genetic defect that causes people to absorb too much iron
iron overload
iron deficiency anemia
hereditary hemochromatosis
goiter
hereditary hemochromatosis
compounds in food that inhibit iodide metabolism by the thyroid gland
goitrogens
cretenism
glutathione peroxidase
selenoproteins
goitrogens
condition in infants who are born to iodine-deficient women; infants have permanent brain damage and growth retardation
cretinism
keshan disease
kashin-beck disease
selenosis
cretinism
family of selenoproteins that have antioxidant function
selenoproteins
glutathione peroxidase
cuproenzymes
transferrin
glutathione peroxidase
disease of heart muscle associated with selenium deficiency
kashin-beck disease
selenosis
keshan disease
dental fluorosis
keshan disease
form of osteoarthritis caused by selenium deficiency, leads to joint deformity and dwarfism
kashin-beck disease
selenosis
keshan disease
dental fluorosis
kashin-beck disease
selenium toxicity
kashin-beck disease
selenosis
keshan disease
dental fluorosis
selenosis
group of enzymes that require copper to function
selenoproteins
glutathione peroxidase
ferritin
cuproenzymes
cuproenzymes
a rare inherited disorder characterized by accumulation of toxic amounts of copper in the body
keshan disease
kashin-beck disease
hypothyroidism
wilson’s disease
wilson’s disease
Which of the following statements is false?
a. lean tissue contains more water than fat tissue
b. water is a major solvent
c. generally, young women have more body water than young men
d. water does not provide energy
c. generally, young women have more body water than young men
If the extracellular fluid has an excess of sodium ions,
a. sodium ions move into cells
b. intracellular fluid moves to the outside of cells
c. phosphate and calcium ions are eliminated in feces
d. blood levels of arsenic and oxalate increase
b. intracellular fluid moves to the outside of cells
For the average, healthy adult, which of the following accounts for the greatest percentage of a person’s total daily water output?
a. feces
b. sweat
c. expired air
d. urine
d. urine
Which of the following statements concerning antidiuretic hormone is false?
a. ADH is secreted in response to dehydration
b. ADH is secreted from the pancreas
c. ADH stimulates reabsorption of water from the kidneys
d. ADH maintains normal fluid balance
b. ADH is secreted from the pancreas
Water intoxication
a. develops over several days
b. results in high blood sodium levels
c. causes dizziness, headache, and confusion
d. is more common than dehydration
c. causes dizziness, headache, and confusion
Major minerals
a. are more important to human health than trace minerals
b. are required in quantities greater than 100 mg daily
c. include calcium, iron, zinc, and iodine
d. may be nonessential nutrients
b. are required in quantities greater than 100 mg daily
Which of the following foods is not a good source of calcium
a. broccoli
b. olive oil
c. low-fat yogurt
d. canned sardines
b. olive oil
Parathyroid hormone (PTH)
a. is secreted in response to high blood calcium levels
b. stimulates activity of osteoblast cells
c. inhibits calcium excretion from the kidneys
d. is secreted from the thyroid gland
c. inhibits calcium excretion from the kidneys
Henry is concerned about the risk of osteoporosis. Which of the following characteristics is a modifiable risk factor for this chronic condition?
a. family history
b. racial/ethnic background
c. physical activity level
d. age
c. physical activity level
The primary source of sodium in the typical American’s diet is
a. processed foods
b. vegetables
c. fruits
d. grains
a. processed foods
Which of the following populations has the greatest risk of hypertension?
a. people with African-american ancestry
b. young, physically active asian men
c. hispanic women who do not drink alcohol
d. young adults who consume large amounts of fruits
a. people with African-american ancestry
Which of the following statements concerning potassium is false?
a. high intake is associated with hypertension
b. fruits and vegetables are rich dietary sources
c. it is the primary positively charged ion in the intracellular fluid
d. deficiency may result from severe and prolonged vomiting
a. high intake is associated with hypertension
The mineral found in chlorophyll, the green pigment in plants, is
a. phosphorus
b. chloride
c. sulfur
d. magnesium
d. magnesium
Which mineral is a component of the amino acids cystine and methionine?
a. phosphorus
b. chloride
c. sulfur
d, magnesium
c. sulfur
True/False: Dark urine, confusion, and rapid weigh loss are all common signs of dehydration.
True
Iron is an example of a major mineral.
T/F
False
Weight-bearing exercise can reduce the risk of osteoporosis.
T/F
True
Consuming too much sodium may contribute to high blood pressure
T/F
True
Fresh fruits and vegetables are rich sources of potassium.
T/F
True
hormone secreted from pituitary glands in response to dehydration; stimulates kidneys to conserve water
antidiuretic hormone
aldosterone
renin
angiotensin II
antidiuretic hormone
hormone secreted from adrenal glands in response to dehydration; stimulates kidneys to conserve sodium and water
antidiuretic hormone
aldosterone
renin
angiotensin II
aldosterone
enzyme secreted in response to low blood volume and falling blood pressure
antidiuretic hormone
aldosterone
renin
angiotensin II
renin
protein secreted in response to low blood volume and falling blood pressure
antidiuretic hormone
aldosterone
renin
angiotensin II
angiotensin II
substance that contributes to the constriction of blood vessels
vasoconstrictor
diuretic
phytic acid
oxalic acid
vasoconstrictor
substance that increases urine production
vasoconstrictor
diuretic
phytic acid
oxalic acid
diuretic
substance found in grains, seeds, and beans that interferes with mineral absorption
vasoconstrictor
diuretic
phytic acid
oxalic acid
phytic acid
substance found in spinach, collard greens, and sweet potatoes that interferes with mineral absorption
vasoconstrictor
diuretic
phytic acid
oxalic acid
oxalic acid
condition that occurs when too much water is consumed in a short time period or kidneys have difficulty filtering water from blood
water intoxication
hypoatermia
hypercalcemia
hyperphosphatemia
water intoxicaiton
low blood sodium
water intoxication
hypoatermia
hypercalcemia
hyperphosphatemia
hyponatremia
high blood calcium
water intoxication
hypoatermia
hypercalcemia
hyperphosphatemia
hypercalcemia
high blood phosphorus levels
vwater intoxication
hypoatermia
hypercalcemia
hyperphosphatemia
hyperphosphatemia
bone cells that break down bone tissue
osteoclasts
calcitonin
osteoblasts
hydroxyapatite
osteoclasts
calcitonin
osteoblasts
hydroxyapatite
hormone secreted by the thyroid gland when blood calcium levels are too high
osteoclasts
calcitonin
osteoblasts
hydroxyapatite
calcitonin
bone cells that add bone to where the tissue is needed
osteoclasts
calcitonin
osteoblasts
hydroxyapatite
osteoblasts
crystalline structure that forms on the collagen protein complex as bone is made
osteoclasts
calcitonin
osteoblasts
hydroxyapatite
hydroxyapatite
protein necessary for absorption of calcium in the small intestine
hydroxyapatite
calcium-binding protein
angiotensin II
glutathione
calcium-binding protein
sulfur-containing antioxidant molecule
hydroxyapatite
calcium-binding protein
angiotensin II
glutathione
glutathione
maximum blood pressure within an artery that occurs when the ventricles contract
diastolic pressure
systolic pressure
resistant hypertension
hypokalemia
systolic pressure
pressure in an artery that occurs when the ventricles relax between contractions
diastolic pressure
systolic pressure
resistant hypertension
hypokalemia
diastolic pressure
blood pressure that remains uncontrolled while taking at least three medications or is controlled only through continued used of four or more medications
diastolic pressure
systolic pressure
resistant hypertension
hypokalemia
resistant hypertension
low blood potassium
hypokalemia
hyperkalemia
hypermagnesemia
hypokalemia
high blood potassium
hypokalemia
hyperkalemia
hypermagnesemia
hyperkalemia
high blood magnesium
hypokalemia
hyperkalemia
hypermagnesemia
hypermagnesemia