Tema 5. Metabolismo de los aminoácidos Flashcards

1
Q

Alteraciones en el ciclo de la urea…

A

Producen un aumento de amoniaco en la sangre

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2
Q

Enzima responsable de la desaminación de los aminoácidos

A

Glutamato deshidrogenasa

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3
Q

Aminoácido cetogénico

A

Leucina ¿Lisina?

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4
Q

Aminoácidos cetoglucogénicos

A

Isoleucina
Fenilalanina
Triptófano
Tirosina

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5
Q

La célula muscular se deshace del grupo amino a partir de…

A

La síntesis de alanina, la cual se trasforma a piruvato en el hígado y finalmente a glucosa

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6
Q

Aminoácidos esenciales únicamente en periodos de crecimiento

A

Arginina e Histidina

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7
Q

Equilibrio nitrogenado negativo

A

Poca ingesta de proteínas (ayuno, diabéticos mal controlados, cirugía, traumatismo, infección…)

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8
Q

Equilibrio nitrogenado positivo

A

Etapas de crecimiento (embarazo, anabolizantes…)

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9
Q

HbA

A

2 a + 2 b

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10
Q

HbF

A

2 a + 2 y

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11
Q

El 2,3-BPG aumenta…

A
Hipoxia 
Anemia 
Entrenamiento 
Altas altitudes 
Favorece la cesión de O2 a los tejidos
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12
Q

Que Hb tiene menos afinidad por el 2,3-BPG

A

La HbF (más afinidad al O2)

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