Mitocondrias Flashcards

1
Q

Función enzima del mioplasto

A

Adenilato quinasa (fosforila AMP a ADP por ATP)

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2
Q

Bcl2

A

Proteína anti-apoptosis, tapa poro

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3
Q

Función DNA mitocondrial

A

Transcribir rRNA y tRNA, enzimas cadena transportadora

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4
Q

Tipo de configuración de las crestas

A

Longitudinales, transversales, curva, tubulares

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5
Q

Inhibición e iniciación ribosomas mitocondriales

A

Inhibidos por cloranfenicol/inician con n-formilmetionina

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6
Q

Complejo I

A

FADH deshidrogenasa (favoproteína Fe-S)

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7
Q

Compleo II

A

NADH deshidrogenasa (flavoproteína Fe-S + grupo FMN, cofactor)

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8
Q

Coenzima Q

A

Ubiquiona (acepta e. de complejo I & II)

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9
Q

Complejo III

A

Citocromos b-c1 (2 grupos hemo + Fe-S)

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10
Q

Citocromo C

A

Recibe e. del complejo III

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11
Q

Complejo IV

A

Citocromo-oxidasa (citocromo a y a3 + grupo hemo + Cu)

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12
Q

Proteínas membrana externa

A

TOM (cruzar) SAM (acoplar porinas)

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13
Q

Proteínas mebrana interna

A

TIM23 (anclar o liberar al espacio mitocondrial), TIM 22 (de varios pasos), OXA (anclar)

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14
Q

Encargada de fusionar mebranas externas

A

GTPasa Mnf1 (mitofusinas)

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15
Q

Encargada de fusionar membranas internas

A

GTPasa OPA1 (optic atrophy)

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16
Q

Encargada de fisión mitocondrias

A

Mff (mitocondrial fision factor) recluta Drp-1 (dynamin related protein) y hace equipo con RE + actina

17
Q

Estado ortodoxo

A

Baja demanda ATP, deformación crestas y membrana interna

18
Q

Ribosomas mitocondriales

A

50s y 70s

19
Q

Membrana externa

A

Memrana interna

20
Q

60% proeínas y 40% lípidos

A

80% proteínas 20% lípidos

21
Q

Similar a REL

A

Cardiolipina (permeable iones y sacarosa, permite unión citocromo C)

22
Q

Citocromo b5 y reductasa b5-NADH

A

Componentes cadena transporte electones

23
Q

Transportadoras, oxidativas y cinasas

A

ATPsintasa, tranferasa (carnitina), transportadores ABC

24
Q

Proteínas Bcl2

A

Menos colesterol

25
Q

Rotenona

A

NADH deshidrogenasa (flavoproteína no acepta e)

26
Q

Antimicina A

A

Citocromos bc1 inhibidos

27
Q

Cianuro & azida

A

Inhibe citocromo-oxidasa

28
Q

Oligomicina &

A

Desacomplantes para ATPsintasa

29
Q

Termogenina

A

Paso directo de H+ (sin ATPsintasa)

30
Q

Alcoholismo

A

mitocondrías + grandes

31
Q

Atrofía/hipertofia

A

-mitocondrías/+mitocondrias

32
Q

Oncositmoa

A

mitcondrias grandes y muchas

33
Q

Matriz

A

DNA y enzimas del ciclo de Krebs y beta oxidación