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Nutrition Through Life Midterm 1 > 7 Electrolytes and Vitamins > Flashcards

7 Electrolytes and Vitamins Flashcards

(47 cards)

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0
Q

Sodium function:

A

Blood pressure, maintaining plasma volume

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1
Q

Potassium function:

A

Blood pressure, reducing kidney stone risk, potentially reducing bone loss.

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2
Q

Sulphur function:

A

Amino acid component, glutathione component

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3
Q

Thiamin function:

A

Coenzyme in CHO and branched chain amino acid metabolism (TPP)

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4
Q

Riboflavin function:

A

Coenzyme in oxidation reduction reactions

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5
Q

Niacin function:

A

Cosubstrate and coenzyme for transfer of hydride ion

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6
Q

B6 function:

A

Coenzyme in metabolism

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7
Q

Folate function:

A

Coenzyme in methyl transfers

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8
Q

B12 function:

A

Coenzyme to convert homocysteine to methionine and CoA to succinyl CoA

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9
Q

Biotin function:

A

Coenzyme in bicarbonate dependent carboxylation reactions

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10
Q

Choline function:

A

Precursor for acetylcholine, phospholipids, and betaine

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11
Q

Pantothenic acid function:

A

Component of CoA and phosphopantetheine (fat metabolism)

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12
Q

Vitamin c function:

A

Cofactors for biosynthesis of collagen, carnitine, and neurotransmitters. Anti oxidant

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13
Q

Vitamin A function:

A

Vision, gene expression, reproduction, embryonic development, growth, immune function

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14
Q

Vitamin E function:

A

Anti oxidant. Prevent propagation of lipid peroxidation

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15
Q

Vitamin D

A

Anti proliferation and pro differentiation effects, enhances absorption of calcium and phosphorous

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16
Q

Vitamin k

A

Blood coagulation, bone metabolism

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17
Q

Do potassium requirements change during pregnancy? Why or why not?

A

No

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18
Q

Do sodium requirements change during pregnancy? Why or why not?

19
Q

Do sulphur requirements change during pregnancy? Why or why not?

20
Q

Do thiamin requirements change during pregnancy? Why or why not?

Study These Flashcards
A

Yes, growth and increased E utilization

21
Q

Do riboflavin requirements change during pregnancy? Why or why not?

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A

Yes, growth and increase E utilization. Reduce urinary excretion to conserve also.

22
Q

Do niacin requirements change during pregnancy? Why or why not?

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A

Yes, increased E utilization

23
Q

Do B6 requirements change during pregnancy? Why or why not?

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A

High fetal and placental uptake, requirements increase towards end of pregnancy because no way to store so demand must be met with intake

24
Do folate requirements change during pregnancy? Why or why not?
Yes, high nucleotide synthesis and cell division
25
Do B12 requirements change during pregnancy? Why or why not?
Yes, only newly absorbed B12 is readily transported across placenta so can't meet the need using stores.
26
Do biotin requirements change during pregnancy? Why or why not?
No. Compensate with absorbing more and excreting less
27
Do choline requirements change during pregnancy? Why or why not?
Yes, especially during embryogenesis, deplete maternal stores and large amounts delivered to the placenta
28
Do pantothenic acid requirements change during pregnancy? Why or why not?
Yes, no info but presume and round up
29
Do vitamin C requirements change during pregnancy? Why or why not?
Yes, especially with smokers
30
Do vitamin D requirements change during pregnancy? Why or why not?
No, little is transferred
31
Do vitamin E requirements change during pregnancy? Why or why not?
No
32
Do vitamin K requirements change during pregnancy? Why or why not?
No
33
What is the basis for thiamin DRI?
Erythrocyte transketolase activity, | Concentration in blood, urinary concentration
34
What is the basis for riboflavin DRI?
Erythrocyte glutathione reductase activity, RBC concentration, urinary excretion
35
What is the basis for niacin DRI?
Urinary excretion of niacin metabolites
36
What is the basis for B6 DRI?
Maintenance of blood 5'-pyridoxal phosphate levels.
37
What is the basis for folate DRI?
Erythrocyte folate, blood homocysteine and folate concentrations
38
What is the basis for B12 DRI?
Haematological status and normal blood values
39
What is the basis for biotin DRI?
Just AI
40
What is the basis for choline DRI?
Serum alanine aminotransferase activity (prevents liver damage)
41
What is the basis for pantothenic acid DRI?
Intake adequate to replace urinary excretion
42
What is the basis for vitamin C DRI?
Near maximal neutrophil concentration with minimal urinary excretion
43
What is the basis for vit A DRI?
Maintenance of body pool (RAE = 1/2 RE)
44
What is the basis for vitamin D DRI?
Serum concentration
45
What is the basis for vitamin E DRI?
Only made for alpha. Correlation between H2O2 induced erythrocyte lysis.
46
What is the basis for vitamin K DRI?
Just AI

Nutrition Through Life Midterm 1 (10 decks)

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