Question 1

Thiamin is important to fatty acid synthesis due to its requirement as a coenzyme for the pentose phosphate pathway enzyme ____.

Accepted Answer

A) dopamine monooxygenase 
B) transketolase 
C) alpha-ketoglutarate dehydrogenase 
D) phenylalanine hydroxylase 
A) dopamine monooxygenase 
B) transketolase 
C) alpha-ketoglutarate dehydrogenase 
D) phenylalanine hydroxylase

Question 2

Methionine is used to synthesize S-adenosylmethionine (SAM).This is important so that ____.

Accepted Answer

A) 5-methyl THF is formed 
B) dUMP is catalyzed to dTMP 
C) fatty acids with an odd-numbered chain can be metabolized 
D) methyl groups are available 
A) 5-methyl THF is formed 
B) dUMP is catalyzed to dTMP 
C) fatty acids with an odd-numbered chain can be metabolized 
D) methyl groups are available

Question 3

Vitamin C's actual participation in biochemical reactions usually involves its antioxidant ability.Choose the description of this activity.

Accepted Answer

A) donates an electron or electrons to oxidize a mineral cofactor 
B) accepts an electron or electrons to reduce a mineral cofactor 
C) donates an electron or electrons to reduce a mineral cofactor 
D) accepts an electron from the quinone form of vitamin E 
A) donates an electron or electrons to oxidize a mineral cofactor 
B) accepts an electron or electrons to reduce a mineral cofactor 
C) donates an electron or electrons to reduce a mineral cofactor 
D) accepts an electron from the quinone form of vitamin E

Question 4

Vitamin B12 is absorbed in the ____.

Accepted Answer

A) duodenum 
B) jejunum 
C) ileum 
D) colon 
A) duodenum 
B) jejunum 
C) ileum 
D) colon

Question 5

Cheilosis is a symptom of a dietary deficiency of which vitamin?

Accepted Answer

A) niacin 
B) ascorbic acid 
C) riboflavin 
D) biotin 
A) niacin 
B) ascorbic acid 
C) riboflavin 
D) biotin

Question 6

A major function of B vitamins is to serve as ____.

Accepted Answer

A) antibodies 
B) a source of energy 
C) a part of a coenzyme 
D) electrolytes 
A) antibodies 
B) a source of energy 
C) a part of a coenzyme 
D) electrolytes

Question 7

Large doses of nicotinic acid are used to treat certain types of hyperlipidemias.

Accepted Answer

A) True 
 B)False

Question 8

In what way are water-soluble vitamins absorbed?

Accepted Answer

A) directly into the lymphatic system 
B) into the portal blood 
C) attached to proteins in the large intestine 
D) through the stomach wall into capillaries 
A) directly into the lymphatic system 
B) into the portal blood 
C) attached to proteins in the large intestine 
D) through the stomach wall into capillaries

Question 9

Beriberi is a deficiency syndrome associated with ____.

Accepted Answer

A) vitamin B12 
B) vitamin B1 
C) vitamin B2 
D) vitamin B6 
A) vitamin B12 
B) vitamin B1 
C) vitamin B2 
D) vitamin B6

Question 10

Vitamins and Hematology: Folate and B12 have an important role in hematology ("blood-related" processes)such that a deficiency of either of these vitamins can result in anemia.Discuss the interrelationship between these vitamins and why a deficiency of either of them results in megaloblastic anemia.Your answer will likely need to talk to some extent about the methyl-folate trap hypothesis.Make sure to relate any metabolic description of folate and B12 to the basis for anemia resulting from a deficiency.

Accepted Answer

B₁₂ is required for homocysteine methylati

Question 11

The organ that is most commonly used as a storage site for B vitamins is the ____.

Accepted Answer

A) kidney 
B) heart 
C) brain 
D) liver 
A) kidney 
B) heart 
C) brain 
D) liver

Question 12

A deficiency of which vitamin is associated with these symptoms: hallucinations,lethargy,skin rash,alopecia,and muscle pain?

Accepted Answer

A) biotin 
B) thiamin 
C) vitamin C 
D) vitamin B12 
A) biotin 
B) thiamin 
C) vitamin C 
D) vitamin B12

Question 13

Pellagra symptoms may appear during B₆ deficiency because this vitamin is required in the process of obtaining niacin from tryptophan.

Accepted Answer

A) True 
 B)False

Question 14

Hair loss associated with eating raw eggs may be reversed by treatment with ____.

Accepted Answer

A) niacin 
B) thiamin 
C) biotin 
D) ascorbic acid 
A) niacin 
B) thiamin 
C) biotin 
D) ascorbic acid

Question 15

Describe the process by which vitamin B12 is digested and absorbed.

Accepted Answer

​Grading rubric - answer should include

Question 16

Match the coenzyme form of a vitamin with an enzyme and significant function.
-biotin

Accepted Answer

A) proline and hydroxyproline; provide rigidity to newly formed collagen 
B) pyruvate dehydrogenase; important for decarboxylations in carbohydrate catabolism 
C) glutathione reductase; important for red blood cell antioxidant integrity and a sensitive measure of riboflavin nutriture 
D) aldehyde dehydrogenase; important for catabolism of vitamin B₆ (pyridoxal to pyridoxic acid) 
E) acetyl-CoA carboxylase; important to form malonyl-CoA and commit acetyl-CoA to fatty acid synthesis 
A) proline and hydroxyproline; provide rigidity to newly formed collagen 
B) pyruvate dehydrogenase; important for decarboxylations in carbohydrate catabolism 
C) glutathione reductase; important for red blood cell antioxidant integrity and a sensitive measure of riboflavin nutriture 
D) aldehyde dehydrogenase; important for catabolism of vitamin B₆ (pyridoxal to pyridoxic acid) 
E) acetyl-CoA carboxylase; important to form malonyl-CoA and commit acetyl-CoA to fatty acid synthesis

Question 17

The best sources of niacin are ____.

Accepted Answer

A) fish and meats 
B) beans 
C) green leafy vegetables 
D) yellow vegetables 
A) fish and meats 
B) beans 
C) green leafy vegetables 
D) yellow vegetables

Question 18

Match the coenzyme form of a vitamin with an enzyme and significant function.
-nicotinamide adenine dinucleotide

Accepted Answer

A) proline and hydroxyproline; provide rigidity to newly formed collagen 
B) pyruvate dehydrogenase; important for decarboxylations in carbohydrate catabolism 
C) glutathione reductase; important for red blood cell antioxidant integrity and a sensitive measure of riboflavin nutriture 
D) aldehyde dehydrogenase; important for catabolism of vitamin B₆ (pyridoxal to pyridoxic acid) 
E) acetyl-CoA carboxylase; important to form malonyl-CoA and commit acetyl-CoA to fatty acid synthesis 
A) proline and hydroxyproline; provide rigidity to newly formed collagen 
B) pyruvate dehydrogenase; important for decarboxylations in carbohydrate catabolism 
C) glutathione reductase; important for red blood cell antioxidant integrity and a sensitive measure of riboflavin nutriture 
D) aldehyde dehydrogenase; important for catabolism of vitamin B₆ (pyridoxal to pyridoxic acid) 
E) acetyl-CoA carboxylase; important to form malonyl-CoA and commit acetyl-CoA to fatty acid synthesis

Question 19

Match the nutrient listed to the phrase or word given.Nutrient choices may be used more than once.
-gulonolactone oxidase

Accepted Answer

A) vitamin B12 
B) vitamin B₆ 
C) folate or folic acid 
D) vitamin C 
A) vitamin B12 
B) vitamin B₆ 
C) folate or folic acid 
D) vitamin C

Question 20

A major role for thiamin is ____.

Accepted Answer

A) energy production 
B) blood coagulation 
C) collagen formation 
D) erythrocyte synthesis 
A) energy production 
B) blood coagulation 
C) collagen formation 
D) erythrocyte synthesis

Thiamin is important to fatty acid synthesis due to its requirement as a coenzyme for the pentose phosphate pathway enzyme ____.

Methionine is used to synthesize S-adenosylmethionine (SAM).This is important so that ____.

Vitamin C's actual participation in biochemical reactions usually involves its antioxidant ability.Choose the description of this activity.

Vitamin B₁₂ is absorbed in the ____.

Cheilosis is a symptom of a dietary deficiency of which vitamin?

A major function of B vitamins is to serve as ____.

Large doses of nicotinic acid are used to treat certain types of hyperlipidemias.

In what way are water-soluble vitamins absorbed?

Beriberi is a deficiency syndrome associated with ____.

The organ that is most commonly used as a storage site for B vitamins is the ____.

A deficiency of which vitamin is associated with these symptoms: hallucinations,lethargy,skin rash,alopecia,and muscle pain?

Pellagra symptoms may appear during B₆ deficiency because this vitamin is required in the process of obtaining niacin from tryptophan.

Hair loss associated with eating raw eggs may be reversed by treatment with ____.

Describe the process by which vitamin B₁₂ is digested and absorbed.

Match the coenzyme form of a vitamin with an enzyme and significant function. -biotin

The best sources of niacin are ____.

Match the coenzyme form of a vitamin with an enzyme and significant function. -nicotinamide adenine dinucleotide

Match the nutrient listed to the phrase or word given.Nutrient choices may be used more than once. -gulonolactone oxidase

A major role for thiamin is ____.

The Cell: A Microcosm of Life

The Digestive System: Mechanism for Nourishing the Body

Carbohydrates

Fiber

Lipids

Protein

Integration and Regulation of Metabolism and the Impact of Exercise

Energy Expenditure, Body Composition, and Healthy Weight

Fat-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

Exam 9: Water-Soluble Vitamins

Thiamin is important to fatty acid synthesis due to its requirement as a coenzyme for the pentose phosphate pathway enzyme ____.

Methionine is used to synthesize S-adenosylmethionine (SAM).This is important so that ____.

Vitamin C's actual participation in biochemical reactions usually involves its antioxidant ability.Choose the description of this activity.

Vitamin B12 is absorbed in the ____.

Cheilosis is a symptom of a dietary deficiency of which vitamin?

A major function of B vitamins is to serve as ____.

Large doses of nicotinic acid are used to treat certain types of hyperlipidemias.

In what way are water-soluble vitamins absorbed?

Beriberi is a deficiency syndrome associated with ____.

The organ that is most commonly used as a storage site for B vitamins is the ____.

A deficiency of which vitamin is associated with these symptoms: hallucinations,lethargy,skin rash,alopecia,and muscle pain?

Pellagra symptoms may appear during B₆ deficiency because this vitamin is required in the process of obtaining niacin from tryptophan.

Hair loss associated with eating raw eggs may be reversed by treatment with ____.

Describe the process by which vitamin B12 is digested and absorbed.

Match the coenzyme form of a vitamin with an enzyme and significant function. -biotin

The best sources of niacin are ____.

Match the coenzyme form of a vitamin with an enzyme and significant function. -nicotinamide adenine dinucleotide

Match the nutrient listed to the phrase or word given.Nutrient choices may be used more than once. -gulonolactone oxidase

A major role for thiamin is ____.

The Cell: A Microcosm of Life

The Digestive System: Mechanism for Nourishing the Body

Carbohydrates

Fiber

Lipids

Protein

Integration and Regulation of Metabolism and the Impact of Exercise

Energy Expenditure, Body Composition, and Healthy Weight

Fat-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

Vitamin B₁₂ is absorbed in the ____.

Describe the process by which vitamin B₁₂ is digested and absorbed.