Ciclo Urea Flashcards

1
Q

Quiénes proveen de amoniaco al ciclo de la urea

A

Amoniaco y aspartato

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2
Q

Donde ocurren las dos primeras reacciones de síntesis de Urea

A

Matriz mitocondrial

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3
Q

Función de la primer enzima del ciclo: Carbamoil fosfato sintetasa I

A

Se une amoniaco formando carbamoil fosfato

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4
Q

Activador alosterico de la Carbamoil fosfato sintetasa I

A

N-acetilglutamato

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5
Q

Ornitina transcarbamilasa, Fx

A

Transporta porción carbamoilo de la carbamoilfosfato a la ornitina

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6
Q

En qué reacción del ciclo de la urea se sintetiza citrulina

A

Ornitina transcarbamilasa

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7
Q

Enzima del ciclo que combina citrulina con aspartato para formar argininosuccinato

A

Argininosuccinato sintetasa

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8
Q

En qué reacción del ciclo de la urea se obtiene Arginina y fumarato

A

Argininosuccinato liasa, disocia argininosuccinato

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9
Q

Producto de la disociación del argininosuccinato que sirve como precursor inmediato de la urea

A

Aspartato

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10
Q

Reacción del ciclo de urea que produce ornitina y urea

A

Arginasa I

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