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NBCD > Chapter 9: Vitamin B5 (Pantothenic Acid) > Flashcards

Chapter 9: Vitamin B5 (Pantothenic Acid) Flashcards

1
Q

other names

panthotheine
pantothenol
antimitochondrial factor

A

pantothenic acid b5

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2
Q

pantothenic acid b5 - chemistry

soluble in _____

A

water

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3
Q

pantothenic acid b5 - chemistry

stable in _____ and in _____

A

moist heat and neutral solutions

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4
Q

pantothenic acid b5 - chemistry

easily destroyed by

A

dry heat

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5
Q

pantothenic acid b5 - chemistry

unstable in

A

acid and alkali

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6
Q

pantothenic acid b5 - chemistry

pure form is a yellow oil that has never been crystalized

A

pantothenic acid

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7
Q

pantothenic acid b5 - chemistry

_____ is a synthetic derivative in crystalline form; used in nutritional supplements

A

calcium pantothenate

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8
Q

pantothenic acid b5 - chemistry

omega-methylpantothenic acid, pentoyl taurine, and phenylpantothenate are what

A

antagonists

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9
Q

pantothenic acid b5 - absorption, transport, utilization

occurs as part of

A

coa

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10
Q

pantothenic acid b5 - absorption, transport, utilization

released from the coenzyme for absorption in the

A

liver

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11
Q

pantothenic acid b5 - absorption, transport, utilization

resynthesized into coa in the presence of atp and

A

cysteine

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12
Q

pantothenic acid b5 - absorption, transport, utilization

about _____ is absorbed

A

half

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13
Q

pantothenic acid b5 - absorption, transport, utilization

excreted in the urine as

A

pantothenic acid

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14
Q

pantothenic acid b5 - functions

as a component of coa and as the _____ on acyl-carrier protein needed in the fatty acid metabolism

involved in acetylation reactions

coa acts as carrier of acetyl groups

acetyl groups are removed to form a compound (acetyl-coa) that can donate its acetyl group in another compound

A

prosthetic group

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15
Q

pantothenic acid b5 - functions

as part of coa, pantothenic acid functions in:
production of energy from cho, chon, and lipids

A

-

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16
Q

pantothenic acid b5 - functions

as part of coa, pantothenic acid functions in:
_____ synthesis

A

fat

17
Q

pantothenic acid b5 - functions

as part of coa, pantothenic acid functions in:
formation of the_____ group of hemoglobin

A

heme

18
Q

pantothenic acid b5 - functions

as part of coa, pantothenic acid functions in:
synthesis of _____ and other steroid hormones

A

cholesterol

19
Q

pantothenic acid b5 - functions

as part of coa, pantothenic acid functions in:
synthesis of _____ needed in nerve impulse tranmission

A

acetyl choline

20
Q

pantothenic acid b5 - functions

as part of coa, pantothenic acid functions in:
metabolism of

A

branched chain amino acids

21
Q

pantothenic acid b5 - functions

important for maintenance and repair of tissues and cells of the _____ and ____

A

skin and hair

22
Q

pantothenic acid b5 - functions

helps in

A

healing wounds

23
Q

pantothenic acid b5 - functions

form of b5 that normalized blood lipid profiles

A

pantheine

24
Q

pantothenic acid b5 - deficiency

_____ and symptoms involve a general failure of all body’s systems

symptoms: vomiting, intestinal distress, insomnia, fatigue, and “burning feet” syndrome

deficiency can be artificially created by giving individuals a diet deficient with the vitamin

A

rare

25
Q

pantothenic acid b5 - toxicity

_____ have been reported with high intakes of vitamin b5, however some experience occasional diarrhea

A

no adverse effects

26
Q

pantothenic acid b5 - recommended intake

increased for? (3)

A

alcoholics and those with diabetes and ulcerative colitis

27
Q

pantothenic acid b5

liver, kidneys, chicken meat, beef, egg yolk, milk, fish, whole grain cereals, potatoes, tomatoes, broccoli, and mushroom

distributed widely in plant and animal foods, thus deficiency is unlikely

A

pantothenic acid food sources

NBCD (89 decks)

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