
Les enzymes
Authored by Claire B.
Biology
12th Grade
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le rôle des enzymes dans le métabolisme des cellules?
Inhiber la réplication de l'ADN
Stabiliser le pH acide
Diminuer la température corporelle
Augmenter la vitesse des réactions chimiques
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la température optimale de fonctionnement des enzymes?
0°C
25°C
50°C
37°C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la structure tridimensionnelle des enzymes?
Sphérique
Filamentaire
Pyramidale
Cubique
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le rôle du site actif de l'enzyme?
Reconnaître le substrat
Produire de l'oxygène
Stabiliser le pH
Inhiber la réaction chimique
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la conséquence d'une concentration élevée en enzyme sur la vitesse de la réaction enzymatique?
Diminution de la vitesse
Arrêt de la réaction
Aucun effet
Augmentation de la vitesse
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la spécificité d'action des enzymes?
Aucune spécificité
Double spécificité
Spécificité infinie
Triple spécificité
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le résultat de la réaction catalase H2O2 en H2O + O2?
Formation de glucose
Formation de dioxyde de carbone
Formation d'eau et d'oxygène
Formation de protéines
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