13. Metabolismo De Monoscaridos Y Disacaridos Flashcards by Jesus Alberto Martínez Rivera | Brainscape

Q

19%de calorias provienen de

A

Fructosa (55g/dia)

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Q

Fructosa

A

No requiere insulina

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Q

Hexocinasa sobre la fructosa

A

Tiene baja afinidad

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Q

Mcanismo primario de fosforilacion de fructosa

A

Fructocinasa

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Q

Fructosa en fructosa 1-fosfato por

A

Fructocinasa usando ATP

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Q

Fructosa 6 fosfato viene de

A

Hexosinasa

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Q

Fructosa 1-P a gliceraldehido y DHAP por

A

Aldolasa B

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Q

Fructosa 6 -P a fructosa 1,6-bifosfato por

A

PFK-1

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Q

Frictosa 1,6-BP a gliceraldehido 3-P y DHAP por

A

Aldolasa A, B(higado) y C(cerebro)

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Q

Deficiencia de fructocinasa

A

Fructosuria escencial

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Q

Deficiencia de aldolasa B

A

Intolerancia a fructosa

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Q

Hexocinasa

A

Fosforila manosa a manosa 6-P

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Q

Manosa 6-P a Fructosa 6-P por

A

Fosfomanosa isomerasa

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Q

Si se reduce un grupo aldehido a hidroxilo

A

Se hace un poliol

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Q

Glucosa a sorbitol

A

Aldosa reductasa

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Q

Sorbitol a fructosa por

A

Sorbitos deshidrogenasa

Q

Deficiendcia de sorbitol deshidrogenasa

A

Cataratas y neuropatias perifericas

Q

Union de lactosa

A

Galactosil β-1,4cglucosa

Q

Galactosinasa produce

A

Galactosa 1-P

Q

Galactosa 1-P para entrar a via se hace

A

UDP-Galactosa

Q

Se intercambian UDP y P la Galactosa 1-P y Udp-glucosa

A

Galactosa 1-P uridililtrasferasa (GALT)

Q

UDP- hexosa 4-epimerasa

A

Convierte UDP-galactosa en UdP-glucosa

Q

Intolerancia a la lactosa por

A

β-galactosidasa

Q

Deficiencia de GALT

A

Galactosa se hace galactiol por aldosa reductasa

Q

D ficiencia en galactocinasa y epimerasa puede dar

A

Cataratas

Q

Lugar de sintesis de lactosa

A

En golgi por lactosa sintasa

Q

UDP-galactosa:glucosa galactsiltrasferasa

A

Libera la UDP cuando la envia a glucosa

Q

Proteina B( α-lactalbumina)

A

En glandulas mamarias

Q

Prolactina estimula a

A

Proteina B( α-lactalbumina)

Q

Proteina A( β-D-galactosiltrasferasa) produce

A

N-acetil lactosamina

Q

Enlace entre glucosa y galactosa

A

β(1-4)