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Chimie > Aminoacizi > Flashcards

Aminoacizi Flashcards

1
Q

formula acid antranilic

A

C6H5-COOH(o-NH2)

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2
Q

formula glicocol / glicina (GLY)

A

NH2-CH2-COOH

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3
Q

formula alanina (ALA)

A

CH3-CH(NH2)-COOH

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4
Q

formula valina (VAL)

A

CH3-CH(CH3)-CH(NH2)-COOH

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5
Q

formula fenilalanina (PHE)

A

C6H5-CH3-CH(NH2)-COOH

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6
Q

formula acid aspartic / asparagic (ASP)

A

HOOC-CH2-CH(NH2)-COOH

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7
Q

formula acid glutamic (GLU)

A

HOOC-CH2-CH2-CH(NH2)-COOH

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8
Q

formula asparagina (ASN)

A

NH2OC-CH2-CH(NH2)-COOH

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9
Q

formula glutamina (GLN)

A

NH2OC-CH2-CH2-CH(NH2)-COOH

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10
Q

formula lizina (LIS)

A

NH2-CH2-CH2-CH2-CH2-CH(NH2)-COOH

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11
Q

formula serina (SER)

A

OH-CH2-CH(NH2)-COOH

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12
Q

formula cisteina (CYS)

A

SH-CH2-CH(NH2)-COOH

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13
Q

care sunt AA esentiali?

A

valina
leucina
izoleucina
fenilalanina
lizina
arginina
treonina
metionina
triptofan
histidina

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14
Q

care sunt AA conditionat-esentiali?

A

glicina
glutamina
tirozina
cisteina

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15
Q

ce formeaza AA la incalzire?

A

cei gamma si delta formeaza amide ciclice (LACTAME)

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16
Q

reactiile de indentificare alfa AA

A
  1. solutie a unei saruri Cu2+ => albastru (o-AA aromatici: albastru-verde)
  2. cu ninhidrina => albastru-violet
17
Q

clasificarea peptidelor si proteinelor dupa nr de AA

A

oligopeptide (2-10 AA)
peptide (11-50 AA)
proteine (51-10.000 AA)

18
Q

comportarea la incalzire a AA

A

distilare uscata a AA in prezenta de Ba(OH)2 => decarboxilare

19
Q

proprietati fizice AA

A

solide, cristalizate individual, incolore si stabile la temp camerei, se topesc la peste 250 grade celsius cu descopunere

AA solubili in apa si insolubili in solventi organici (CIS e foarte putin solubil in apa)

20
Q

AA monoaminomonocarboxilici

A

glicina
alanina
valina
leucina (LEU)
izoleucina (ILE)
fenilalanina

21
Q

AA diaminomonocarboxilici

A

lisina
arginina (ARG)
ornitina (ORN)

22
Q

hidroxi AA

A

serina
treonina (THR)
tirosina (TYR)

23
Q

tio AA

A

cisteina
metionina (MET)

24
Q

hetero AA

A

prolina
triptofan
histidina

25
Q

din ce sunt facute sistemele tampon

A

baza slaba + sarea ei cu un acid tare
acid slab + sarea lui cu o baza tare

26
Q

abrevieri acid glutamic si lisina

A

E si K

Chimie (17 decks)

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