
Biochimie Seminar 1
Authored by Violeta Barnaciuc
Chemistry
1st Grade
Used 22+ times

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50 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns corecte:
Produsele de hidroliză ale proteinelor simple sunt:
Elemente chimice: C, H, N, O;
Aminoacizi;
Acid fosfor;
Nucleotide;
Amilaza.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns corecte:
Aminoacidul Ala la tratarea cu reactivul Foll formează:
un amestec de gaze cu miros înțepător;
un precipitat de culoare brună;
o soluție de culoare violet;
o soluție de culoare galbenă;
Nu interacționează.
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns incorecte:
În mediul bazic glicina se află sub formă de:
H2N-CH2-COOH
H2N-CH2-COO-
H3N+-CH2-COO-
H3N+-CH2-COOH
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns corecte:
Proprietăți fizice caracteristice aminoacizilor:
Substanțe amorfe;
Greu solubili în solvenți nepolari;
Punct de topire relativ înalt.
Foarte ușor solubili în apă.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns incorecte:
Gruparea –NH2 conferă aminoacizilor proprietăți:
Acide;
Bazice;
Neutre.
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns corecte:
În componența proteinelor sunt prezenți:
α-aminoacizi;
β-aminoacizi;
tioaminoacizi;
hidroxiaminoacizi;
aminoacizi aromatici.
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Alege varianta sau variantele de răspuns corecte:
Funcţiile proteinelor în celulă:
catalitice;
stocare a informaţiei genetice;
structurale;
energetice;
transport.
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