Aminoacizi

Question 1

formula acid antranilic

Answer 1

C6H5-COOH(o-NH2)

Question 2

formula glicocol / glicina (GLY)

Answer 2

NH2-CH2-COOH

Question 3

formula alanina (ALA)

Answer 3

CH3-CH(NH2)-COOH

Question 4

formula valina (VAL)

Answer 4

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

Question 5

formula fenilalanina (PHE)

Answer 5

C6H5-CH3-CH(NH2)-COOH

Question 6

formula acid aspartic / asparagic (ASP)

Answer 6

HOOC-CH2-CH(NH2)-COOH

Question 7

formula acid glutamic (GLU)

Answer 7

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

Question 8

formula asparagina (ASN)

Answer 8

NH2OC-CH2-CH(NH2)-COOH

Question 9

formula glutamina (GLN)

Answer 9

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

Question 10

formula lizina (LIS)

Answer 10

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

Question 11

formula serina (SER)

Answer 11

OH-CH2-CH(NH2)-COOH

Question 12

formula cisteina (CYS)

Answer 12

SH-CH2-CH(NH2)-COOH

Question 13

care sunt AA esentiali?

Answer 13

valina
leucina
izoleucina
fenilalanina
lizina
arginina
treonina
metionina
triptofan
histidina

Question 14

care sunt AA conditionat-esentiali?

Answer 14

glicina
glutamina
tirozina
cisteina

Question 15

ce formeaza AA la incalzire?

Answer 15

cei gamma si delta formeaza amide ciclice (LACTAME)

Question 16

reactiile de indentificare alfa AA

Answer 16

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

Question 17

clasificarea peptidelor si proteinelor dupa nr de AA

Answer 17

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

Question 18

comportarea la incalzire a AA

Answer 18

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

Question 19

proprietati fizice AA

Answer 19

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)

Question 20

AA monoaminomonocarboxilici

Answer 20

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

Question 21

AA diaminomonocarboxilici

Answer 21

lisina
arginina (ARG)
ornitina (ORN)

Question 22

hidroxi AA

Answer 22

serina
treonina (THR)
tirosina (TYR)

Question 23

tio AA

Answer 23

cisteina
metionina (MET)

Question 24

hetero AA

Answer 24

prolina
triptofan
histidina

Question 25

din ce sunt facute sistemele tampon

Answer 25

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

Question 26

abrevieri acid glutamic si lisina

Answer 26

E si K