DHN 101 EXAM 3 ACTUAL EXAM QUESTIONS AND ANSWERS PRACTICE
QUESTIONS WITH SOLUTIONS NEWEST | ALREADY GRADED A+/NEWEST
UPDATE!!!
Gabe's elderly neighbor told him that when he was growing up, the milkman would deliver glass
bottles of milk to his family's doorstep. He wonders why milk is not available in glass bottles
anymore. Gabe explains to him that light destroys certain water-soluble vitamins in milk and
milk is now stored in opaque containers to help preserve the B vitamin - (Correct Answer)-
riboflavin
Side effects of vitamins - (Correct Answer)-Niacin --> Skin flushing
Vitamin A --> birth defects
Vitamin C --> diarrhea and GI tract discomfort
Folic acid --> can mask vitamin B-12 deficiency
Vitamin A containing foods from lowest to highest - (Correct Answer)-beef liver, pumpkin,
cooked carrots, milk
What function do many B vitamins serve in the production of energy? - (Correct Answer)-the
function as co-enzymes
The only source of retinoids, also called ______, is also found in animal foods like fish and
organ meat. - (Correct Answer)-performed vitamin A
Plants contain pigments called ______ that can be turned into vitamin A in the body if needed. -
(Correct Answer)-carotenoids
These pigments are also called provitamin A; the most potent form of provitamin A is ______,
the orange-yellow pigment in carrots and other orange and yellow vegetables and fruits -
(Correct Answer)-beta-carotene
Other provitamin A carotenoids include zeaxanthin and _____, two important components of the
macula that help eye health. - (Correct Answer)-lutein
, 2
Matching vitamins with food sources - (Correct Answer)-E: plant oils
D: fortified milk
K: dark green leafy vegs
C: citrus fruits
Vitamin supplements are sometimes used by the general public for therapeutic purposes. Of the
following medicinal uses of vitamins, which vitamin supplement/health outcome is the only one
proven in scientific research to be beneficial? - (Correct Answer)-nicotinic acid ( a form of
niacin) for lowering LDL and increasing HDL levels
Performed vitamin A carotenoids - (Correct Answer)-liver, fish oils, fortified milk, eggs, fortified
margarine
Provitamin A carotenoids - (Correct Answer)-carrots, spinach, winter squash, sweet potatoes,
mangoes
Gabe's grandfather has a history of heart disease and is on anticoagulant drug therapy. His
prescription drugs include Coumadin (warfarin). What dietary precaution should his grandfather
be taking? - (Correct Answer)-avoid any large increases in dark green, leafy vegetable intake
because vitamin K can reduce effectiveness of anticoagulants and promote blood cells
Vitamin A in the form of beta-carotene is a fat-soluble pro-vitamin found primarily in dark
orange and yellow fruits and vegetables. Fat is required to transport fat-soluble nutrients, but
most fruits and vegetables that are good sources of this fat-soluble pro-vitamin are low in fat or
fat-free. How can you enhance the body's absorption of fat-soluble pro-vitamins when preparing
low-fat foods rich in these vitamins? - (Correct Answer)-you can add olive oil or margarine to
vegetables after they are cooked
A food product that contains fat has the potential for spoilage when that fat becomes oxidized
and rancid. The germ in the whole wheat kernel contributes fat to whole wheat bread products. If
a bread's ingredient list contains whole wheat flour, water, yeast, sugar, and BHT, which
, 3
ingredient is serving as the antioxidant intended to extend the bread's shelf life? - (Correct
Answer)-BHT
In order to be classified as a vitamin, a compound must meet a number of criteria to be an
essential nutrient. Check all that apply: - (Correct Answer)-the body can't synthesize enough of
the compound to maintain health and absence of the compound from the diet for a defined period
produces deficiency symptoms that, if caught in time, are quickly cured when the substance is
resupplied
Matching vitamins with their roles - (Correct Answer)-A: vision
D: a hormone
E: antioxidant that prevents breakdown of Vitamin A
K: activates blood clotting factors
Why are older people at increased risk for vitamin B-12 deficiency compared to younger people?
- (Correct Answer)-As you age, your stomach produces less acid, which limits cleavage of
vitamin B-12 from food. In addition, decreased production of intrinsic factor by the stomach
limits vitamin B-12 absorption
While breastmilk has a near-perfect nutritional profile for infants, breast milk is low in vitamin
D. Formula-fed infants who do not receive much sunlight may also be at risk for vitamin D
deficiency. Recently, the American Academy of Pediatrics doubled its recommendation for
childhood vitamin D supplementation and now recommends that all children receive how much
vitamin D per day? - (Correct Answer)-400 IU
Gabe was experiencing fatigue, despite sleeping eight hours per night. He went to the doctor and
was diagnosed with iron-deficiency anemia. The doctor recommended he eat iron-fortified
breakfast cereals. Which food would be the best accompaniment for his iron-fortified breakfast
cereal and why? - (Correct Answer)-He should have a cup of orange juice or an orange with the
iron-fortified breakfast cereal because vitamin C in the orange increases iron absorption.
Alternate names for vitamins - (Correct Answer)-Riboflavin --> Vitamin B-2
QUESTIONS WITH SOLUTIONS NEWEST | ALREADY GRADED A+/NEWEST
UPDATE!!!
Gabe's elderly neighbor told him that when he was growing up, the milkman would deliver glass
bottles of milk to his family's doorstep. He wonders why milk is not available in glass bottles
anymore. Gabe explains to him that light destroys certain water-soluble vitamins in milk and
milk is now stored in opaque containers to help preserve the B vitamin - (Correct Answer)-
riboflavin
Side effects of vitamins - (Correct Answer)-Niacin --> Skin flushing
Vitamin A --> birth defects
Vitamin C --> diarrhea and GI tract discomfort
Folic acid --> can mask vitamin B-12 deficiency
Vitamin A containing foods from lowest to highest - (Correct Answer)-beef liver, pumpkin,
cooked carrots, milk
What function do many B vitamins serve in the production of energy? - (Correct Answer)-the
function as co-enzymes
The only source of retinoids, also called ______, is also found in animal foods like fish and
organ meat. - (Correct Answer)-performed vitamin A
Plants contain pigments called ______ that can be turned into vitamin A in the body if needed. -
(Correct Answer)-carotenoids
These pigments are also called provitamin A; the most potent form of provitamin A is ______,
the orange-yellow pigment in carrots and other orange and yellow vegetables and fruits -
(Correct Answer)-beta-carotene
Other provitamin A carotenoids include zeaxanthin and _____, two important components of the
macula that help eye health. - (Correct Answer)-lutein
, 2
Matching vitamins with food sources - (Correct Answer)-E: plant oils
D: fortified milk
K: dark green leafy vegs
C: citrus fruits
Vitamin supplements are sometimes used by the general public for therapeutic purposes. Of the
following medicinal uses of vitamins, which vitamin supplement/health outcome is the only one
proven in scientific research to be beneficial? - (Correct Answer)-nicotinic acid ( a form of
niacin) for lowering LDL and increasing HDL levels
Performed vitamin A carotenoids - (Correct Answer)-liver, fish oils, fortified milk, eggs, fortified
margarine
Provitamin A carotenoids - (Correct Answer)-carrots, spinach, winter squash, sweet potatoes,
mangoes
Gabe's grandfather has a history of heart disease and is on anticoagulant drug therapy. His
prescription drugs include Coumadin (warfarin). What dietary precaution should his grandfather
be taking? - (Correct Answer)-avoid any large increases in dark green, leafy vegetable intake
because vitamin K can reduce effectiveness of anticoagulants and promote blood cells
Vitamin A in the form of beta-carotene is a fat-soluble pro-vitamin found primarily in dark
orange and yellow fruits and vegetables. Fat is required to transport fat-soluble nutrients, but
most fruits and vegetables that are good sources of this fat-soluble pro-vitamin are low in fat or
fat-free. How can you enhance the body's absorption of fat-soluble pro-vitamins when preparing
low-fat foods rich in these vitamins? - (Correct Answer)-you can add olive oil or margarine to
vegetables after they are cooked
A food product that contains fat has the potential for spoilage when that fat becomes oxidized
and rancid. The germ in the whole wheat kernel contributes fat to whole wheat bread products. If
a bread's ingredient list contains whole wheat flour, water, yeast, sugar, and BHT, which
, 3
ingredient is serving as the antioxidant intended to extend the bread's shelf life? - (Correct
Answer)-BHT
In order to be classified as a vitamin, a compound must meet a number of criteria to be an
essential nutrient. Check all that apply: - (Correct Answer)-the body can't synthesize enough of
the compound to maintain health and absence of the compound from the diet for a defined period
produces deficiency symptoms that, if caught in time, are quickly cured when the substance is
resupplied
Matching vitamins with their roles - (Correct Answer)-A: vision
D: a hormone
E: antioxidant that prevents breakdown of Vitamin A
K: activates blood clotting factors
Why are older people at increased risk for vitamin B-12 deficiency compared to younger people?
- (Correct Answer)-As you age, your stomach produces less acid, which limits cleavage of
vitamin B-12 from food. In addition, decreased production of intrinsic factor by the stomach
limits vitamin B-12 absorption
While breastmilk has a near-perfect nutritional profile for infants, breast milk is low in vitamin
D. Formula-fed infants who do not receive much sunlight may also be at risk for vitamin D
deficiency. Recently, the American Academy of Pediatrics doubled its recommendation for
childhood vitamin D supplementation and now recommends that all children receive how much
vitamin D per day? - (Correct Answer)-400 IU
Gabe was experiencing fatigue, despite sleeping eight hours per night. He went to the doctor and
was diagnosed with iron-deficiency anemia. The doctor recommended he eat iron-fortified
breakfast cereals. Which food would be the best accompaniment for his iron-fortified breakfast
cereal and why? - (Correct Answer)-He should have a cup of orange juice or an orange with the
iron-fortified breakfast cereal because vitamin C in the orange increases iron absorption.
Alternate names for vitamins - (Correct Answer)-Riboflavin --> Vitamin B-2
