
LES PROTIDES
Authored by Jean-Charles TRUFFAUT
Chemistry
1st Grade
Used 5+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A son pH isoélectrique, un acide aminé AA se présente sous la forme :
AA
AA+
AA+/-
AA-
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un acide aminé comporte toujours :
Un groupement carbonyle et une groupement amide
Un groupement carbonyle et une groupement amino
Un groupement carboxyle et un groupement amide
Un groupement carboxyle et un groupement amino
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Les acides aminés :
Appartiennent systématiquement à 2 couples acide/base (au minimum)
Ont 2 valeurs de pKa (au minimum)
Se comportent comme des acides forts
Sont des composés amphotères
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
La liaison peptidique est une liaison :
Covalente double
Du type : ... - CO - NH - ...
Se formant avec un départ d'eau
Unissant 2 acides aminés non successifs au sein d'un peptide
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le nombre de liaison.s peptidique.s au sein d'un tripeptide est de :
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le peptide représenté ci-dessus associe :
2 acides aminés
3 acides aminés
4 acides aminés
5 acides aminés
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le niveau de structure déterminant la forme tridimensionnelle d'une protéine est le niveau :
Primaire
Secondaire
Tertiaire
Quaternaire
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