Vitamins Flashcards

Learn about the basic functioning of Vitamins

1
Q

Forms of Vitamin A

A

Retinol, Beta Carotene

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2
Q

What is main form of Vitamin D

A

Calciferol

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3
Q

What are forms of Vitamin E?

A

Tocopherols, Tocotrienols

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4
Q

Forms of Vitamin K

A

Phylloquinones and Menaquinones

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5
Q

Forms of Vitamin B

A

B1-Thiamin. B2-Riboflavin and Niacin, B6-Pyridoxine, Pyridoxal, Pyridoxine. FOLIC ACID. B12-Cobalamin, Pantothenic acid.

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6
Q

What are the main forms of Vitamin H and C respectively?

A

Biotin and Ascorbic acid.

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7
Q

Functions of Vitamin A

A
  • Visual pigments in retina, Control of gene expression
  • control of cell differentiation
  • antioxidant
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8
Q

Deficiency of Vitamin A can lead to

A

-Night blindness, Xerophthalmia, Keratinization of skin

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8
Q

Deficiency of Vitamin A can lead to

A

-Night blindness, Xerophthalmia, Keratinization of skin

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9
Q

Function of Calciferol

A
  • Enhances intestinal absorption of Calcium ions.
  • Maintains Calcium balance
  • Mobilizing of bone mineral
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10
Q

Deficiency of calciferol causes

A

Rickets-poor mineralization

Osteomalacia-demineralization

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11
Q

What is the function of Vitamin E?

A

Antioxidant especially in cell membrane.

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12
Q

What does Vitamin E deficiency cause?

A

Very rare, extreme neurological disease

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13
Q

Function of Vitamin K

A

Coenzyme in formation of Gamma carboxyglutamate which makes up enzymes of clotting and bone matrix

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14
Q

Deficiency of Vitamin K causes.

A

Impaired clotting, Haemophilia, Hemorrhagic disease

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15
Q

Function of Thiamin (B1)

A

Coenzyme in pyruvate and alpha ketoglutarate dehydrogenases, transketolases. Unknown function in nerve conduction.

16
Q

Deficiency of Thiamin causes

A

Peripheral nerve damage (beriberi), CNS lesions(Werniche-Korsakoff syndrome)

17
Q

Functions of Riboflavin

A

Coenzyme in reduction and Oxidation reactions.

Prosthetic group of flavoproteins

18
Q

Deficiency of Riboflavin leads to

A

Seborrhoeic dermatitis, lesions of mouth, lips and tongue

19
Q

What is the function of Niacin in the body?

A

Co enzyme in redox reactions functional part of NADP and NAD

20
Q

Niacin deficiency causes

A

Pellagra, photosensitive dermatitis, depressive psychosis

21
Q

Vitamin B6 functions are

A

Co enzyme in transamination and decarboxylation of amino acids glycogen phosphorylase.

22
Q

Vitamin B deficiency causes

A

Disorders of amino acid metabolism

23
Q

Folic acid functions in the body is to?

A

Coenzyme in transfer of one carbon fragments

24
Folic acid deficiency causes
Megaloblastic anemia
25
What is the function of Cobalamin in the body?
Co enzyme in transfer of one carbon fragments. | Folic acid metabolism
26
Cobalamin deficiency causes
Pernicious anemia-megaloblastic anemia with degeneration of spinal cord
27
Pantothenic acid function is to
Functional part of CoA and acyl carrier proteins fatty scid synthesis
28
What is the function of Vitamin H Biotin
Coenzyme in carboxylation reactions in gluconeogenesis and fatty acid synthesis
29
What is deficiency effect of Biotin
Impaired fat and carbohydrate metabolism, dermatitis
30
Ascorbic acid function is
Coenzyme hydroxylation of proline and lysine in collagen synthesis, antioxidant, enhanced iron absorption