Citoesqueleto Flashcards

1
Q

¿Qué es el citoesqueleto?

A

Red de filamentos proteicos en el citosol

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2
Q

Funciones

A

Dar forma y arquitectura
Movimiento celular
Transportar moléculas

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3
Q

Propiedades

A

Polimerización y despolimerización
Polaridad
Regulación

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4
Q

Composición

A

Microfilamentos de actina
Filamentos intermedios
Microtúbulos

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5
Q

Formadas por dímeros de proteínas globulares denominadas α- y βtubulina. S

A

Microtúbulos

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6
Q

Funciones microtúbulos

A

Segregar material genético
Formar cilios y flagelos
Desplazar organelos

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7
Q

2 tipos de proteínas motoras

A

Cinesinas: viajan hacia el extremo más.
Dineínas: viajan hacia el extremo menos.

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8
Q

Estructura filamentos intermedios

A

Agrupaciones de proteínas fibrosas

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9
Q

Funciones filamentos intermedios

A

Soportar tensiones y anclaje

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10
Q

Enfermedad ocasionada por defectos en filamentos intermedios (queratina)

A

Epidemolisis bullosa

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11
Q

Unión de 2 proteínas globulares (actina)

A

Microfilamentos de actina

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12
Q

Participan en los procesos de
endocitosis (fagocitosis).
Movimiento celular

A

Microfilamentos de actina

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13
Q

Alzheimer

A

Microfilamentos de actina y filamentos intermedios

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