What is the primary function of enzymes in biological systems?

Enzymes Quiz

Quiz
•
Biology
•
University
•
Hard
abhijit das
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Transport oxygen in the blood
Speed up chemical reactions
Regulate body temperature
Store genetic information
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the basic structure of an enzyme?
Enzymes are made up of simple sugars.
Enzymes have a linear structure.
Enzymes consist of inorganic molecules.
Enzymes have a complex three-dimensional structure consisting of folded amino acid chains.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How do enzymes catalyze chemical reactions?
Enzymes lower the activation energy of chemical reactions.
Enzymes increase the activation energy of chemical reactions.
Enzymes convert reactants into products without any energy change.
Enzymes have no effect on the activation energy of chemical reactions.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the difference between competitive and non-competitive enzyme inhibition?
Competitive enzyme inhibition occurs when a molecule binds to the active site, while non-competitive enzyme inhibition occurs when a molecule competes with the substrate for a site other than the active site.
Competitive enzyme inhibition occurs when a molecule competes with the substrate for the active site, while non-competitive enzyme inhibition occurs when a molecule binds to a site other than the active site.
Competitive enzyme inhibition occurs when a molecule binds to a site other than the active site, while non-competitive enzyme inhibition occurs when a molecule competes with the substrate for the active site.
Competitive enzyme inhibition occurs when a molecule competes with the substrate for a site other than the active site, while non-competitive enzyme inhibition occurs when a molecule binds to the active site.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Michaelis-Menten equation used for in enzyme kinetics?
The Michaelis-Menten equation is used to determine the optimal pH for enzyme activity.
The Michaelis-Menten equation is used to describe the rate of enzymatic reactions.
The Michaelis-Menten equation is used to measure the size of an enzyme molecule.
The Michaelis-Menten equation is used to calculate the concentration of substrate in an enzymatic reaction.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the turnover number of an enzyme?
The turnover number of an enzyme is the maximum number of substrate molecules that an enzyme can convert into product per unit time when the enzyme is fully saturated with substrate.
The turnover number of an enzyme is the total number of substrate molecules that an enzyme can convert into product per unit time when the enzyme is fully saturated with substrate.
The turnover number of an enzyme is the average number of substrate molecules that an enzyme can convert into product per unit time when the enzyme is fully saturated with substrate.
The turnover number of an enzyme is the minimum number of substrate molecules that an enzyme can convert into product per unit time when the enzyme is fully saturated with substrate.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the role of cofactors and coenzymes in enzyme function?
Cofactors and coenzymes inhibit the catalytic activity of enzymes.
Cofactors and coenzymes have no effect on the catalytic activity of enzymes.
Cofactors and coenzymes are byproducts of enzyme reactions.
Cofactors and coenzymes assist in the catalytic activity of enzymes.
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