VITAMINA B12 Flashcards

1
Q

B12

A

cianocobalomina

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2
Q

-Sensible a la luz rayos UV
-Poco estable en medio de ácidos y alcalinos
-Soluble en alcohol poco soluble en agua insoluble en cloroformo

A

Funciones

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3
Q

-Origen animal ( microbiota)-
-Ácido gástrico y la pepsina liberan la vitamina para unirse con la COBALOFILINA
-Une con factor intrinseco
- se absorbe apartir del tercio distal del ileon

Papaya jugo de naranja melón brocoli pimientos verdes , jugo de toronja fresas

A

Fuentes

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4
Q

Seres humanos murciélagos aveces peces invertebrados

A

Necesario para

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5
Q

Anemia perniciosa ( altera la al eritropoyesis ) liberan precursores inmaduros hacia la circulación

A

Deficiencia

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6
Q

Alteración de cicatrización de encías ( perdida de dientes y fractura de huesos )

A

ESCORBUTO

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7
Q

Cuánto dura su reserva

A

400 días

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8
Q

Ingesta disminuida

A

Anemia macrocitica

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9
Q

Alteraciones gastricas e intestinales

A

Neuropatia

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10
Q

Interacción fármacos y alcohol

A

Aterosclerosis

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