18 Questions
What is the primary function of enzymes in chemical reactions?
To decrease the activation energy of the reaction
At what temperature do enzymes typically function in the human body?
37°C
What is the unit of measurement for the amount of enzyme that catalyzes the conversion of one micromole of substrate to product per minute?
μmol/min
Which of the following factors does not affect enzyme activity?
Pressure
What is the optimal pH for the enzyme pepsin in gastric juice?
1.5-2
What is the term for the RNA molecules that can catalyze chemical reactions?
Ribozymes
What is the unit of katal?
1 mol/s
What is the specific activity of an enzyme dependent on?
The amount of protein
What is the term for the combination of an apoenzyme and its cofactor?
Holoenzyme
What determines the reaction specificity and substrate specificity of an enzyme?
The structure of the active site
What is the term for an enzyme that is composed only of protein?
Simple enzyme
What is the classification of enzymes that catalyze oxidation and reduction reactions?
Oxidoreductases
What type of enzyme is carbonic anhydrase?
Lyase
What is the general suffix of an enzyme name?
-ase
What is the function of glucokinase?
Convert glucose to glucose-6-phosphate
What is the main difference between hexokinase and glucokinase?
Affinity for glucose
What is the EC number classification system used for?
Classifying enzymes based on their reaction type
What is the composition of LDH-1 isozyme?
4H
Test your knowledge of enzymes, including their general characteristics, factors affecting their activity, structure, classification, specificity, medical uses, inhibition, and regulation. Learn about the role of enzymes in catalyzing chemical reactions.
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