Mitocondria Flashcards

1
Q

Membrana de la mitocondría (descripción)

A

2 bicapas lipidicas

Interna y Externa

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2
Q

Bajos niveles de…

A

Esfingomielinas
Glicolipidos
Colesterol

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3
Q

Altos niveles de…

A

Fosfatidilcolina
Cardiolipinas

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4
Q

Composición de la membrana externa

A

40% lipidos
60% proteinas

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5
Q

Membrana externa es gramm…

A

Negativa

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6
Q

Transporte pasivo en la membrana externa gracias a…

A

Porinas

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7
Q

Composición de la membrana interna

A

80% proteinas
20% lipidos

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8
Q

Membrana interna altamente rica en…

A

Cardiolipina

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9
Q

Membrana interna impermeable…

A

Si

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10
Q

Tipos de proteinas en las crestas de la membrana interna:

A

Reacciones de oxidación de la cadena respiratoria

ATPasa

Transportadoras

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11
Q

Rutas metabolicas en la matriz mitocondrial

A

Ciclo de Krebs
B-oxidación

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12
Q

Copias de ADN circular en la matriz mitocondrial

A

2 RNAr
22 RNAt
13 polipeptidos

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13
Q

Que hay en el espacio intramembranoso?

A

Proteinas relacionadas con la apoptosis

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14
Q

Como se desplazan las mitocondrias?

A

Microtubulos
Filamentos de actina

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15
Q

Como se comunican las mitocondrias?

A

Fusión (unión permanente)

Contactos membrana membrana

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16
Q

Biogenesis de mitocondrias

A

Fisión (constricción por RE)

Fusión

17
Q

Funciones de la Mitocondria

A

Sintesis de ATP

Metabolismo de lipidos

Regulación de Ca+ en el citosol

Sintesis de grupos hemo

Sintesis y degradación de multiples factores metabolicos