Comesterol Flashcards

1
Q

Derivado de

A

Ciclopentanoperhidrofenantreno

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2
Q

Sustrato

A

Acetil CoA

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3
Q

Localización

A

Citosol

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4
Q

Producto

A

Colesterol

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5
Q

Tejidos

A

Todos
Hígado glnd suprarrenal

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6
Q

Etapa 1

A

Síntesis mevalonato a partir de Acetil CoA

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7
Q

Etapa 2

A

Descarboxilacion mevalonato hasta formar isoprenos

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8
Q

Primer isopreno

A

Isopentenilpirofosfato

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9
Q

Segundo isopreno

A

Dimetilalilpirofosfato

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10
Q

Enzima reguladora

A

HMG- CoA reductasa

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11
Q

Etapa 3

A

Condensación isoprenos 6 para formar escualeno

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12
Q

Etapa4

A

Transformación de escualeno a lanosterol

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13
Q

Etapa 5

A

Transformación de lanosterol a colesterol

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14
Q

Características

A

Aliciclico
Cuatro anillos funcionados

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15
Q

Degradación

A

Vía fecal

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16
Q

Enzima encargada de formar este de colesterol

A

ACAT
Acil CoA colesterol acil transferasa

17
Q

Fx LCAT

A

Lecitina a lisolecitina metiendo colesterol y sacando Ester de colesterol

18
Q

Fx sales biliares

A

Emulsión de grasas

19
Q

Tipos de sales biliares

A

Primarias y secundarias

20
Q

Sales biliares primarias

A

Ac cólico
Ac quenodesoxicolico

21
Q

Sales biliares secundarias

A

Ac desoxicolico
Ac Litocolico

22
Q

Enzima reguladora que pasa de colesterol las sales biliares

A

7 alfa hidroxicolesterol

23
Q

Precursor, hormonas esteroideas

A

Pregnenolona

24
Q

Hormonas esteroideas

A

Glucocorticoides
Mineralocorticoides
Andrógenos
Estrógenos
Progestinas

25
Q

Inhibidor de la HMG-CoA reductasa

A

Atrovastatina