Multiple Choice
In biochemistry, which statement best defines an enzyme?
19
views
6. Enzymes and Enzyme Kinetics
Enzymes
Multiple Choice
In an enzyme-catalyzed biochemical reaction, what happens to the enzyme after the reaction has proceeded to products?
A
It becomes irreversibly denatured after a single turnover under normal physiological conditions.
B
It is permanently consumed as a reactant and must be resynthesized for each new reaction.
C
It is converted into product as part of the reaction stoichiometry.
D
It is regenerated in its original form and can catalyze another reaction cycle.
Verified step by step guidance1
Understand the role of enzymes in biochemical reactions: enzymes act as catalysts that speed up reactions without being consumed or permanently altered.
Recall that enzymes bind to substrates to form an enzyme-substrate complex, facilitating the conversion of substrates into products.
Recognize that after the product is formed, the enzyme releases the product and returns to its original state, ready to catalyze another reaction cycle.
Note that enzymes are not converted into products nor are they irreversibly denatured under normal physiological conditions during a single turnover.
Conclude that the enzyme is regenerated in its original form after the reaction and can participate in multiple catalytic cycles.
Related Videos
Related Practice
