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Nutrition > Riboflavin > Flashcards

Riboflavin Flashcards

1
Q

is it a trace element, vitamin, or mineral? Riboflavin

A

vitamin B2

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2
Q

what are its three properties? Riboflavin

A

 Heat stable  Unstable to alkali &

light  Yellow-green lumenesence

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3
Q

because this is unstable to light what product should not be exposed to sunlight? Riboflavin

A

milk

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4
Q

what are its two functions? Riboflavin

A

 Carbohydrate, fat & energy metabolism

 Coenzyme of FAD

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5
Q

how does it function as a Coenzyme of FAD? Riboflavin

A

Accepts and transfers hydrogen ions

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6
Q

what is the deficiency symptom? Riboflavin

A

Tissue inflammation & breakdown

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7
Q

what are the five places where the deficiency symptom of tissue inflammation and breakdown occur? Riboflavin

A

mouth, nose, skin, eyes, tongue

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8
Q

whats the name and details of the deficiency symptom of tissue inflammation and breakdown occurring at the mouth? Riboflavin

A

Cheilosis

 Lips swollen, crack easily & at corner of mouth

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9
Q

whats the name and details of the deficiency symptom of tissue inflammation and breakdown occurring at the nose? Riboflavin

A

Seborrhea

 Scaly, greasy eruption, especially in skin folds

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10
Q

whats the name and details of the deficiency symptom of tissue inflammation and breakdown occurring at the skin? Riboflavin

A

Dermatitis

 Wounds do not heal easily

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11
Q

whats the name and details of the deficiency symptom of tissue inflammation and breakdown occurring at the eyes? Riboflavin

A

Corneal vascularization

 Extra blood vessels, burning, itch, tear  Sensitive to light

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12
Q

whats the name of the deficiency symptom of tissue inflammation and breakdown occurring at the tongue? Riboflavin

A

Glossitis

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13
Q

whats the recommended intake? Riboflavin

A

M 1.3 mg; F 1.1 mg

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14
Q

what are the recommended intakes not related to and the three things its related to? Riboflavin

A

Not related to calories,

rather body size, metabolic rate & rate of growth

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15
Q

when are the five cases the recommended intakes should be increased? Riboflavin

A

Increased in chronic illness, wound healing (needs more protein) & other stresses - growth, pregnancy, lactation

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16
Q

what is the toxicity symptom? Riboflavin

A

none known

17
Q

what are the three main food sources? Riboflavin

A

 Milk

 Meat  Enriched cereals

Nutrition (32 decks)

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