HUN 1201 EXAM 3 QUESTIONS AND
ANSWERS (VERIFIED AND UPDATED)
Thiamin (Vitamin B1) (V) food sources - ANS 1. food sources: many have some, few are very
rich, but eaten all together it is adequate for diet; grain selections should be whole grain or
enriched; fortified cornflakes, tomato juice, lean pork chop, soy milk, acorn squash
Thiamin (Vitamin B1) (V) deficiency - ANS 2. deficiency: malnourished and alcoholics; alcohol
impairs absorption and increases urinary excretion; beriberi- chronic deficiency, dry affects the
nervous system and causes muscle weakness, wet affects the cardiovascular system and causes
edema
Thiamin (Vitamin B1) (V) toxicity - ANS 3. toxicity: no adverse effect; no UL established
Thiamin (Vitamin B1) (V) roles in body - ANS 4. roles in body: assists in energy metabolism as
part of coenzyme thiamin pyrophosphate (TPP); nerve activity and muscle activity
Thiamin (Vitamin B1) (V) facts - ANS 5. facts: average intake meets/exceeds
recommendations; must eat nutritious foods to meet energy needs; destroyed by prolonged
cooking, leaches into cooking water- best to steam or microwave
riboflavin (vitamin b2) (V) food sources - ANS 1. food sources: milk and milk products;
fortified cereals; dark green leafy vegetables; broccoli, plain yogurt, egg, liver, mushrooms
riboflavin (vitamin b2) (V) deficiency - ANS 2. deficiency: inflammation of membranes-mouth,
skin, eyes, GI tract; most people meet/ exceed their needs
@2026/2027 ALLRIGHTS RESERVED.
, riboflavin (vitamin b2) (V) toxicity - ANS 3. toxicity: no UL established
riboflavin (vitamin b2) (V) role in body - ANS 4. role in body: serves as a coenzyme in energy
metabolism- flavin mononucleotide (FMN), flavin adenine dinonuceotide (FAD)
riboflavin (vitamin b2) facts - ANS 5. facts: destroyed by ultraviolet rays and irradiation;
heat/cooking stable
niacin (vitamin b3) (V) food sources - ANS 1. food sources: meat, poultry, seafood; fortified
cornflakes, chicken breast, canned in water tuna, liver, mushrooms
niacin (vitamin b3) (V) deficiency - ANS 2. deficiency: pellagra- causes the 4 D's (diarrhea,
dermatitis, dementia, death)
niacin (vitamin b3) (V) toxicity - ANS 3. toxicity: no harm when it is naturally occurring in
foods; supplements and drugs can causes a "niacin flush" which is 3-4x more than the RDA of
niacin and causes tingling and vessel dilation; there can be potential benefit from large doses of
nicotinic acid but can be toxic if other diseases are present
niacin (vitamin b3) (V) roles in body - ANS 4. roles in the body: body manufacturers it from
tryptophan and it only occurs after protein synthesis needs have been met; has two coenzyme
forms that assist in metabolic reactions- nictotinamide adenine dinonucleotide (NAD)--> carries
hydrogen and their electrons- metabolism; NADP (phosphate form of NAD)
niacin (vitamin b3) (V) facts - ANS 5. facts: less vulnerable to food preparation loses but still
can leach into cooking water at times; has two chemical structures- nicotinic acid and
nicotinamide (major form in blood); body makes it from tryptophan
folate (folacin or folic acid) (V) deficiency - ANS 2. deficiency: primary deficiency is
inadequate intake and secondary deficiency is impaired absorption, increased needs, drug
interactions; can cause anemia (macrocytic or megaloblastic) and GI tract deterioration
@2026/2027 ALLRIGHTS RESERVED.
ANSWERS (VERIFIED AND UPDATED)
Thiamin (Vitamin B1) (V) food sources - ANS 1. food sources: many have some, few are very
rich, but eaten all together it is adequate for diet; grain selections should be whole grain or
enriched; fortified cornflakes, tomato juice, lean pork chop, soy milk, acorn squash
Thiamin (Vitamin B1) (V) deficiency - ANS 2. deficiency: malnourished and alcoholics; alcohol
impairs absorption and increases urinary excretion; beriberi- chronic deficiency, dry affects the
nervous system and causes muscle weakness, wet affects the cardiovascular system and causes
edema
Thiamin (Vitamin B1) (V) toxicity - ANS 3. toxicity: no adverse effect; no UL established
Thiamin (Vitamin B1) (V) roles in body - ANS 4. roles in body: assists in energy metabolism as
part of coenzyme thiamin pyrophosphate (TPP); nerve activity and muscle activity
Thiamin (Vitamin B1) (V) facts - ANS 5. facts: average intake meets/exceeds
recommendations; must eat nutritious foods to meet energy needs; destroyed by prolonged
cooking, leaches into cooking water- best to steam or microwave
riboflavin (vitamin b2) (V) food sources - ANS 1. food sources: milk and milk products;
fortified cereals; dark green leafy vegetables; broccoli, plain yogurt, egg, liver, mushrooms
riboflavin (vitamin b2) (V) deficiency - ANS 2. deficiency: inflammation of membranes-mouth,
skin, eyes, GI tract; most people meet/ exceed their needs
@2026/2027 ALLRIGHTS RESERVED.
, riboflavin (vitamin b2) (V) toxicity - ANS 3. toxicity: no UL established
riboflavin (vitamin b2) (V) role in body - ANS 4. role in body: serves as a coenzyme in energy
metabolism- flavin mononucleotide (FMN), flavin adenine dinonuceotide (FAD)
riboflavin (vitamin b2) facts - ANS 5. facts: destroyed by ultraviolet rays and irradiation;
heat/cooking stable
niacin (vitamin b3) (V) food sources - ANS 1. food sources: meat, poultry, seafood; fortified
cornflakes, chicken breast, canned in water tuna, liver, mushrooms
niacin (vitamin b3) (V) deficiency - ANS 2. deficiency: pellagra- causes the 4 D's (diarrhea,
dermatitis, dementia, death)
niacin (vitamin b3) (V) toxicity - ANS 3. toxicity: no harm when it is naturally occurring in
foods; supplements and drugs can causes a "niacin flush" which is 3-4x more than the RDA of
niacin and causes tingling and vessel dilation; there can be potential benefit from large doses of
nicotinic acid but can be toxic if other diseases are present
niacin (vitamin b3) (V) roles in body - ANS 4. roles in the body: body manufacturers it from
tryptophan and it only occurs after protein synthesis needs have been met; has two coenzyme
forms that assist in metabolic reactions- nictotinamide adenine dinonucleotide (NAD)--> carries
hydrogen and their electrons- metabolism; NADP (phosphate form of NAD)
niacin (vitamin b3) (V) facts - ANS 5. facts: less vulnerable to food preparation loses but still
can leach into cooking water at times; has two chemical structures- nicotinic acid and
nicotinamide (major form in blood); body makes it from tryptophan
folate (folacin or folic acid) (V) deficiency - ANS 2. deficiency: primary deficiency is
inadequate intake and secondary deficiency is impaired absorption, increased needs, drug
interactions; can cause anemia (macrocytic or megaloblastic) and GI tract deterioration
@2026/2027 ALLRIGHTS RESERVED.
