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CBFM Final > Vitamins > Flashcards

Vitamins Flashcards

1
Q

Fat Soluble vitamins

A

FAT nAKED person

n
A vitamin
K vitamin
E vitamin
D vitamin

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2
Q

Water soluble vitamins

A

Thomas - Thiamine B1
Richard - Riboflavin B2
Never - Niacin B3
Pounded - Pantothenic Acid B5
Pussy Six - Pyridoxine B6
But - Biotin B7
Fondled - Folate B9
Chest - Cobalamin B12

Vitamin C

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3
Q

Folate found in

A

Yeast
Liver
Fruit
Green veggies

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4
Q

Thiamine found in

A

Meat
Fish
Whole grains

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5
Q

Pantothenic Acid found in

A

Liver
Cereals
Mushrooms
Avocados
Nuts

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6
Q

Niacin found in

A

Liver
Yeast
Cereal
Meat
Legumes

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7
Q

Riboflavin found in

A

Liver
Yeast
Egg
Meat
Milk

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8
Q

B6 found in

A

Liver
Fish
Whole grains
Nuts
Legumes
Egg
Yeast

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9
Q

Biotin found in

A

Liver
Yeast
Peanuts
Milk
Chocolate

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10
Q

B12 found in

A

Microorganisms

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11
Q

Vitamin c found in

A

Fruits and veggies

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12
Q

Thiamine uptake

A

Diet to tissues

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13
Q

Active form of Thiamine

A

TPP

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14
Q

B2 uptake

A

Absorbed in small intestine
Energy dependent manner

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15
Q

Which vitamin is sensitive to visible light

A

riboflavin
It’s yellow

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16
Q

Vitamin A found in

A

Organ meat
Green veggies
Leafy veggies
Carrots

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17
Q

Vitamin K found in

A

K1: Green leafy veggies
K2: bacteria in intestines
K3: artificial

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18
Q

Vitamin E found in

A

Veggie oils
Oily seeds
Wheat germ

19
Q

Vitamin D found in

A

Liver
Egg yolk
Salt water
Fish

20
Q

Niacin uptake

A

Absorbed in small intestine
Goes to tissues

21
Q

B5 importance

A

No deficiency
Forms CoA
Important in tons of reactions

22
Q

B6 uptake

A
  1. Digested in small intestine
    Pyridoxal 5 phosphate (PLP) turns to pyridoxal so it can be absorbed
  2. Absorbed and phosphorylated back to PLP
  3. Dephosphorylated to pyridoxal
  4. Oxidized to pyridoxic acid
23
Q

Folate uptake

A
  1. Hydrolyzed to monoglutamate form in the intestine
  2. Reduced to dihydrofolate
    Using NADPH
  3. Reduced further to tetrahydrofolate
    in intestinal mucosa using NADPH
  4. Conjugated into polyglutamate form in tissues
24
Q

B12 uptake

A

Absorbed in ileum
Need an intrinsic factor from parietal cells in stomach to absorb

In the blood
it forms B12 transcobalamin II complex
uptake by receptor-mediated endocytosis

25
Q

Vitamin c uptake

A

Blood/tissue levels proportional to intake

26
Q

Vitamin A uptake

A

By liver

27
Q

Vitamin A storage

A

Stored as retinal ester

28
Q

Vitamin D uptake

A

Light
D3
Liver
Hydroxylated in liver 1st
Hydroxylated in kidney
Calcitriol = active from
Goes to
Bone
Kidney
Intestine

29
Q

Vitamin E uptake

A

Scavengers of free-radicals

30
Q

Vitamin K uptake

A

Prothrombin made in liver
Carboxylated prothrombin secreted in blood

31
Q

Cofactor of thiamin and function

A

TPP
Form and break C-C bonds
oxidative decarboxylation
transketolase
in PPP turns glucose to ribose for DNA synth

32
Q

Cofactor of riboflavin and function

A

FMN (flavin mononucleotide) or FAD (flavin adenine dinucleotide)
They can accept 2 H to form FMNH2 or FADH2
Then FMNH2 and FADH2 can donate 2 H to form FMN or FAD

REDOX

33
Q

Niacin cofactor and function

A

Coenzymes in the NAD and NADP forms
These dudes are hydrogen acceptors
They combine with hydrogen as they are removed from food by dehydorgenases

34
Q

B5 cofactor and function

A

CoA
2 main functions

1: conversion of decarboxylated pyruvic acid to acetyl CoA before CAC

2:degrades fatty acid molecules into lots of acetyl CoA

35
Q

Coenzyme of B6 and function

A

Pyridoxal 5’ phosphate (PLP)

AA metabolism
It’s the coenzyme in the transamination for AA
Also decarboxylation of stuff

36
Q

Biotin is the prosthetic group of ____

A

Carboxylases
Pyruvate carboxylase
Acetyl CoA carboxylase
Propionyl CoA carboxylase

37
Q

Folate cofactor and function

A

THF
Needs B6 and B12
It is a carrier of hydroxymethyl
Forms purines: guanine and adenosine and thyamine

38
Q

Cofactor and function of B12

A

Methionine
It’s coupled with B6 and folate(THF reaction)
Malonyl coa mutase is B5

39
Q

Vitamin C key points

A

From D-glucose
Good reducing agent
Hydroxylated of collagen and carnitine
Catecholamine synthesis

40
Q

Describe the cathecholamine synthesis

A

Tyrosine —> Norepinephrine
epinephrine
dopamine
dopa

Need vit C as cofactor helping process along

41
Q

Vitamin C and E

A

E = stationary
cell membranes
scavenger of free radicals
C = mobile
regenerate the reduced vit E

42
Q

Basics of C and E antioxidant

A

E in the membrane
Binds a free radical
Transfers to C
Uses thiol and GSH to get rid of it
by oxidizing to create disulfide bond
this has NADPH to NADP and H

43
Q

Where can folate be trapped

A

N5 methyl THF

44
Q

B6 PLP is used in

A

Transamination
And
Decarboxylation

CBFM Final (18 decks)

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