HUSK repetitionsøvelserne Flashcards

1
Q

Aldoser oxideres til?

A

Carboxylsyre

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2
Q

Hvilke tre måder kan monosakkarider repræsenteres som?

A

Fisher (Åben kæde: Aldo-/keto-form)
Stol formation (lukket kæde: halvacetal)
Haworth (lukket kæde: halvacetal)

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3
Q

Glycopuranose er en sammenslutning af _ og _ carbonatom.

A

C1 og C5

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4
Q

Ribose har _ carbonatomer?

Tegn Ribose

A

5 Carbonatomer

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5
Q

Definitionen af et anomert carbon

A

Det carbon de rindgår i cykliseringsreaktionen og danner halvacetal - er forbundet med oxygenatomet i ringen.

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6
Q

Definition af Alfa/Beta-mutarotation

A

Er OH gruppen bundet trans = Alfa
Er OH gruppen bindet CIs = Beta

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7
Q

Mutarotation

A

Anomert hydroxygruppe ændre rotation fra alfa til beta

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8
Q

Definitionen af et glykosid

A

Ringsluttet kulhydrat acetal

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9
Q

Sucrose består af:

A

Glukose og fructose
1,2 glykosid binding

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10
Q

Maltose består af:

A

To glukosemolekyler
Alfa-1,4 glykosidbinding

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11
Q

Lactose består af:

A

Galaktose og glukose
1,4 beta glykosid binding

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12
Q

Cellulose, amylose, og glycogen sammeholdes af hvilken type bindinger?

A

1,4 glykosid bindinger

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13
Q

Blodtype A

A

N-Acetyl-D-galactosamine bundet til galaktose

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14
Q

Blodtype B

A

Galakose bundet til galaktose

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15
Q

Blodtype 0

A

Ingenting bundet til galaktose

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16
Q

Nævn mindst 5 forskellige beskadigelser/fejl på DNA streng

A

Depurination
Deamination
Mismatch af basepar
Enkeltstrengsbeskadigelse
Dobbeltstrengsbrud

17
Q

Redegør for homolog rekombination

A

Efter S fase replikation

18
Q

Redegør for nonhomolog rekombination

A

Før S fase replikation

19
Q

Beta-D-fructose-1,6 difosfat

A

Furanose (5 atomring)

Cyklisk hemiketal (C5 og C2)

Ring: 4 carbon + 2x CH2OH

Høj reaktivitet

20
Q

Beta-D-glucopyranose-6-fosfat

A

Pyranose (6 atomring)

Cyklisk hemiacetal ml. carbonyl grp og C5

To isomerer former = mutarotation

Fosfat på C6

21
Q

Furanose

A

5 atomring

22
Q

Pyranose

A

6 atomring

23
Q

Biologisk oxidation af alkohol

A

Isocitrat –> oxalosuccinat