purinas y pirimidinas Flashcards

1
Q

nucleotido

A

tiene una base nitrogenada, un azucar, grupo fosfato

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2
Q

que es una base nitrogenada

A

son estructuras con nitrogeno, se encuentran en acidos nucleicos y se dividen en purinas y pirimidinas

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3
Q

que es una purina

A

estan conformados por dos anillos, son adenina y guanina, se encuentran en adn y arn

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4
Q

que es pirimidina

A

estan conformados por solo un anillo, son timina, citosina y uracilo, la timina solo en adn, uracilo en arn y la citosina en ambas

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5
Q

como se producen las bases nitrogenadas

A

por sintesis de novo o metodos de salvamento o reciclaje

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6
Q

metodo de salvamento

A

se reutilizan antes de ser elminidas para generar nucleotidos

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7
Q

nucleosido

A

cuando se degradan los nucleotidos, se obtiene un nucleosido al perder el grupo fosfato

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8
Q

carbamoil fosfato sintetasa 2

A

convierte glutamina en carbamoil fosfato

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9
Q

aspartato transcarbamilasa

A

convierte carbamoil fosfato más aspartato en carbamoil aspartato,

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10
Q

dihidroorotasa

A

convierte el carbamoilaspartato en dihidroorotato

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11
Q

dihidroorotato deshidrogenasa

A

dihidroorotato en orotato

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12
Q

orotato ribosiltransferasa

A

convierte el orotato en omp , si falla provoca aciduria orotica

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13
Q

omp descarboxilasa

A

omp en ump

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14
Q

punto de regulación

A

aspartato transcarbamilasa

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15
Q
A
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