Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Nutrition Exam 3 > Ch. 10 Water-Soluble Vitamins > Flashcards

Ch. 10 Water-Soluble Vitamins Flashcards

1
Q

How many water-soluble vitamins are there total?

A

9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What easily destroys water-soluble vitamins?

A

heat
light
pH
oxidation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which 2 B vitamins are easily destroyed by UV light?

A

B12
Riboflavin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which B vitamin is easily damaged in an alkaline pH?

A

Thiamin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which water-soluble vitamin oxidizes when exposed to air and heat?

A

Vitamin C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which B vitamin deteriorates during cooking?

A

Folate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What happens to water-soluble vitamins in the stomach?

A

They are hydrolyzed from the protein complexes found in food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where are most of the water soluble vitamins absorbed?

A

Duodenum
Jejunum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which B vitamin is absorbed in the ileum?

A

Vitamin B12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the primary function of B vitamins?

A

B vitamins act as coenzymes in metabolic processes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which macronutrients do B vitamins help enzymes break down into ATP?

A

Carbs
Proteins
Fats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which B vitamin is converted into its active coenzyme form TPP?

A

Thiamin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which 2 metabolic processes does Thiamin aid?

A

CHO metabolism
Protein metabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which vitamin B deficiency results in Beriberi?

A

Thiamin deficiency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which B vitamin’s coenzyme forms are FMN and FAD?

A

Riboflavin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which B vitamin participates in energy metabolism through oxidation-reduction reactions?

A

Riboflavin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which B vitamin enhances the function of other B vitamins, such as niacin, folate, and vitamin B6?

A

Riboflavin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which riboflavin coenzyme is a major electron carrier in redox reactions during the TCA cycle?

A

Riboflavin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which deficiency causes Ariboflavinosis? (red/swollen mouth)

A

Riboflavin deficiency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Which B vitamin’s 2 coenzymes are NAD+ and NADP+?

A

Niacin (B3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which B vitamin is necessary for healthy skin cells and a functioning digestive system?

A

Niacin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the UL for Niacin?

A

UL; 35 mg/day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which deficiency can lead to Pellagra (4 D’s)?

A

Niacin Deficiency

24
Q

Which B vitamin is part of coenzyme A?

A

Pantothenic acid

25
Q

Which B vitamin can be destroyed by heat and therefore are more available in fresh foods?

A

Pantothenic Acid

26
Q

Which rare deficiency is rare but can lead to
Fatigue
Nausea
Vomiting
Numbness
Muscle Cramps
Difficulty walking?

A

Pantothenic Acid Deficiency

27
Q

Which B vitamin functions as a coenzyme and is involved in energy metabolism,
DNA replication
Cell development/growth
healthy hair/nails?

A

Biotin

28
Q

What deficiency results in hair loss, depression, conjunctivitis, dermatitis, lethargy, and hallucinations?

A

Biotin deficiency

29
Q

Which B vitamin can be stored in the body by being attached to enzymes mostly in muscles?

A

Vitamin B6

30
Q

Which B vitamin is a coenzyme for over 100 enzymes and is mostly involved in amino acid metabolism?

A

Vitamin B6

31
Q

Which B vitamin has a UL of 100mg/day and toxicity can cause nerve damage, difficulty walking, and leg tingling?

A

Vitamin B6

32
Q

Which B vitamin deficiency causes a sore tongue, skin inflammation, depression, confusion, microcytic hypochromic anemia?

often caused by excessive alcohol consumption

A

Vitamin B6 deficiency

33
Q

What is the synthetic form of Folate that is added to foods and supplements?

A

Folic acid

34
Q

How is the majority of excess folate excreted?

Where is a small amount of folate stored?

A

Urine

Liver

35
Q

Which B vitamin helps prevent neural tube defects?

A

Folate

36
Q

What is the RDA for folate in women?

A

Women: 400 micrograms/day

37
Q

What is the RDA for folate in pregnant/expecting women?

A

600 micrograms/day

38
Q

What is the term for the unit used to define the RDA for folate? (DFE)

A

Dietary Folate Equivalents

39
Q

What does the Dietary Folate Equivalents account for?

A

Differences in absorption between synthetic folate and folate in food

40
Q

What is the UL for folate?

A

1000ug/day

41
Q

What can excess intake of folate cause?

A

It can mask a vitamin B12 deficiency

42
Q

Which vitamin B deficiency can cause macrocytic anemia?

A

Folate deficiency

43
Q

What is vitamin B12 also called?

A

Cobalamin

44
Q

What is the coenzyme (active) form of B12:

Cyanocobalamin or Methycobalain?

A

Methycobalamin

45
Q

What is the glycoprotein secreted by the stomach that facilitates the absorption of Vitamin B12 in the small intestine?

A

Intrinsic Factor

46
Q

Why do symptoms of vitamin B12 deficiency sometimes take years to develop?

A

because it is stored in the liver

47
Q

Which B vitamin is activated by Vitamin B12?

A

Folate

48
Q

The absorption of WHICH B vitamin decreased with age?

A

Vitamin B12

49
Q

Is there a toxicity risk or UL for B12?

A

No

50
Q

Which B vitamin deficiency can cause pernicious anemia?

A

B12 deficiency

51
Q

Which vitamin is also known as ascorbic acid?

A

Vitamin C

52
Q

Do humans lack the enzyme to make vitamin C?

A

Yes

53
Q

Is vitamin C stored in the body?

A

No

54
Q

Which vitamin has these metabolic functions:

Collagen synthesis
Antioxidant
Enhanced Iron/mineral absorption
Immune system
Histamine Breakdown

A

Vitamin C

55
Q

What is the UL for vitamin C?

A

2,000 mg/day

56
Q

What can consuming > 3,000 mg of vitamin C cause?

A

Nausea, stomach cramps, diarrhea, kidney stones

57
Q

Which vitamin deficiency cause cause Scurvy?

A

Vitamin C deficiency

Nutrition Exam 3 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions