vitamins 2 Flashcards

1
Q

tell the active form of niacin

A

NAD+

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2
Q

tell the reaction niacin involved in

A

REDOX reactions

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3
Q

tell functions of niacin

A

electron carrier in respiration
metabolism of carbs and lipids
detoxification reaction thought transfer of ADP ribose from NAD to protein
produced from tryptophan with help of B6, B2 and iron

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4
Q

tell deficiencies of niacin

A

pellagra - burning sensation, lover damage

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5
Q

tell food sources of niacin

A

VEG, cereal

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6
Q

tell process losses of niacin

A

high pH can destroy

stable to temp, leach and light

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7
Q

tell active from of folic acid

A

tetrahydropholate

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8
Q

tell reaction of folic acid

A

Methylation and receptor/donor of CH3

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9
Q

tell the functions of folic acid

A

accumulation in liver, brain and placenta

methylation and nucleic acid synthesis

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10
Q

tell deficiencies of folic acid

A

exess intake can cause anaemia and neural tube defect

affect cell division

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11
Q

tell active from of biotin

A

biotin -lysin complex

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12
Q

tell the reaction of biotin

A

ATP dependent carboxylation

and carboxyl gr transferase

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13
Q

tell how biotin is produced

A

by bacteria in small intestine

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14
Q

tell functions of biotin

A

residues of histone, important for gene expression
aa metabolism
gluconeogeneis

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15
Q

tell deficiencies of biotin

A

RARE , excess take of eggs
Nausea, fatigue and muscle pain are results
no RNI

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16
Q

tell food sources of biotin

A

high in liver , eggs, veg

17
Q

tell the loss process of biotin

A

stable to light, temp, pH and heat