Aminoacizi

Question 1

Ce sunt aminoacizi naturali

Answer 1

sunt alfa-aminoacizi in care gruparea carboxil (COOH-) si amino (NH2-) sunt legate la acelasi atom de carbon, C-alfa

Question 2

Cum se face clasificarea aminoacizilor

Answer 2

in functie de:
- proprietati chimice
- utilitatea lor in biosinteza proteinelor
necesitatea biosintezei lor pentru organism
implicarea lor ca substrat al gluconeogenezei

Question 3

aa cu radical alifatic

Answer 3

glicina / alanina / valina / leucina / izoleucina / metionina

Question 4

aa care contin nucleu aromatic

Answer 4

fenilalanina / tirozina / triptofan

Question 5

aa cu catene laterale neincarcate electric

Answer 5

serina / treonina / asparagina / glutamina / cisteina

Question 6

aa cu catene laterale incarcate pozitiv

Answer 6

aa diamino-monocarboxilici (Lizina / arginina / histidina)

Question 7

aa cu catene laterale incarcate negativ

Answer 7

aa monoamino-dicarboxilici (aspartat / glutamat)

Question 8

aa hidrofobi

Answer 8

aa cu catene laterale alifatice sau aromatice nepolare (in afara de glicina)

Question 9

aa hidrofili

Answer 9

aa cu catene laterale incarcate electric

Question 10

aa proteinogeni

Answer 10

aa care intra in compozitia proteinelor

Question 11

aa neproteinogeni

Answer 11

aa care nu intra in compozitia proteinelor

Question 12

aa care participa la ciclul ureei

Answer 12

ornitina si citrulina

Question 13

taurina

Answer 13

aa care intra in componenta acizilor biliari

Question 14

Beta alanina

Answer 14

intra in structura coenzimei A

Question 15

aa care intra in structura coenzimei A

Answer 15

Beta alanina

Question 16

aa care intra in componenta acizilor biliari

Answer 16

taurina

Question 17

homoserina

Answer 17

intermediar in catabolismului metioninei

Question 18

intermediar in catabolismului metioninei

Answer 18

homoserina

Question 19

aa esentiali

Answer 19

valina, leucina, izoleucina, fenilalanina, triptofan, lisina, metionina si treonina
V.LIFT.LMT