MEMBRANA CELULAR Flashcards

1
Q

MODELO DE MOSAICO FLUIDO

A

PROPUESTO POR SINGER Y NICHOLSONEN 1972

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2
Q

COMPOSICIÓN QUÍMICA

A

LIPIDOS Y PORTEINAS

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3
Q

FUNCION:TRANSPORTE

A

PASIVO Y ACTIVO

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4
Q

PARTES DE LA MEMBRANA CELULAR

A

-PROTEINA PERIFERICA(EXTRINSICA)
PROTEINA INTEGRAL(INTRISECA)
-ESTEROIDES
-BICAPA DE FOSFOLIPIDOS

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5
Q

FOSFOLIPIDOS

A

CUMPLE FUNCION ANFIPATICA YA QUE TIENE UN APARTE POLAR(HIDROFILICA)
Y APOLAR(HIDROFOBICA)

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6
Q

FUNCION DE TRANSPORTE-PASIVA

A

A FAVOR DEL GRADIENTE DE CONCENTRACION
-NO GASTA ATP

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7
Q

CLASIFICACION DEL TRANSPORTE PASIVO

A

DIFUSION SIMPLE
-DISUDISON FACILITADA

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8
Q

DIFUSIÓN SIMPLE

A

-AGUA(OSMOSIS)
-GASES
-ALCOHOL

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9
Q

DIFUSION FACILITADA

A

MONOSACARIDOS Y AMINOACIDOS

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10
Q

TRANSPORTE ACTIVO

A

-SE GASTA ATP
-EN OCNTRA DE LA GRADIENTE DE CONCENTRACION
ÓR BOMBAS DE NA Y K
EN MASA

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11
Q

DOST IPOS

A

ENDOCITOSIS
-EXOCITOSIS

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12
Q

ENOCITOSIS

A

-FAGOCITOSIS (SUSTANCIAS SOLIDAD)
-PINOCITOSIS (SUSTANCIAS SOLUBLES)

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13
Q

EXOCITOSIS

A

-EGESTIÓN SECRECION CELULAR)
-SECRECION (PRODUCTOS UTILES:EJEMPLO PROTEINAS

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