ciclul krebs Flashcards

1
Q

la ce se poate folosi alfa cetoglutaratul

A

sinteza de aa non-esentiali, in sistemul nervos avem glutamat si GABA - neurotransmitatori

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2
Q

la ce se foloseste succinil co a

A

la biosinteza hemului

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3
Q

la ce putem folosi citrat

A

espulzat in citosol, postprandial pentru sinteza de ag

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4
Q

cate molecule de atp rezulta in urma punerii 1 mol de acetilcoa in krebs

A

12 moli

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5
Q

in care reactie se formareaza gtp. ce enzima, ce fel de reactie e, ce rezulta din ce

A

succinil- coa in succinat / ENZIMA: succinat tiokinaza

reactie de conversie. (doar una avem de acest gen)

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6
Q

unde e reactia de hidratare? ce enzima.

A

fumarat in malat. ENZIMA: fumaraza ( se adauga o molecula de apa)

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7
Q

cate reactii de decarboxilare avem si care sunt ele?

A

2 reactii . izocitrat in alfacetoglutarat . si alfacetoglutarat in succinil coA. ( de formeaza NADH)

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8
Q

UNDE ESTE REACTIA DE OXIDARE?

A

oxidare la succinat in fumarat. enzima

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9
Q

a/ f ciclul krebs e inactivat de hipoxie.

A

adevarat.

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10
Q

care e reactia de dehidrogenare?

A

malat in oxaloacetat. enzima e malat dehidrogenaza.

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11
Q

A/F succinat dehidrogenaza determina oxidarea succinatului la fumarat.

A

adevarat.

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12
Q

care este prima reactie de formare NADH din ciclul krebs

A

izocitrat la alfa cetoglutarat.

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13
Q

carre sunt reactiile in care se formeaza nadh?

A

izocitrat in alfa-cetoglutarat si alfacetoglutarat in succinil co A

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14
Q

ce fel de reactie e reactia in care se transforma succinil co A in succinat?

A

reactie de conversie.

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