membrana Flashcards

1
Q

estrucutra básica fosfoglicéridos

A

-fosfato
-glicerol
-2 á.g.
-amino alcohol

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2
Q

estrucutra básica esfingolípidos

A

-ceramida = esfingosina + á.g.
-cermaida + fosfocolina = esfingomielina

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3
Q

función principal esfingolípidos

A

rafts

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4
Q

función principal fosfogliceridos

A

formar membrana

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5
Q

relación con proteína esfingolípidos

A

organizar (rafts)

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6
Q

relación con proteína fosfogliceridos

A

anclaje de proteínas

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7
Q

clasificación de lípidos de membrana

A
  1. fosfolípidos (fosfoglicéridos + esfingolípido)
  2. esteroles (colesterol)
  3. glicolípidos (gangliósidos + cerebrósidos)
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8
Q

formación de cerebrósidos o gangliósidos

A
  1. cere: ceramida + monosac
  2. ganglio: ceramida + di/polisac
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9
Q

cermamida

A

esfingosina + á.g

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10
Q

función colesterol

A

rigidez

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11
Q

modelo membrana, nombre y quién lo hizo

A

moscaico fluido, Singer y Nicolson

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12
Q

tipos transporte pasivo

A
  1. osmosis
  2. simple (gases)
  3. facilitado
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13
Q

célula hipertónica

A

crenación/plasmólisis

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14
Q

célula hipotónica

A

citólisis/hemólisis

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15
Q

diferencia entre canales y transportadores

A

canales no sufren cambio conformacional (poros)
transportadores -> GLUT 2

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16
Q

transporte secundario

A

sodio/Glucosa
crea un gradiente, pero no gasta directo

17
Q

tipos de endocitosis

A

fagocitosis
pinocitosis
mediada por receptores

18
Q

tipos de exocitosis

A

constituva
regulada (necesita estímulo)

19
Q

proteínas integrales

A

monotípicas (solo una capa)
paso único/multipaso
multisubunidad

20
Q
A