Enzymes
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an enzyme?
Back
A biological catalyst that speeds up chemical reactions in living organisms without being consumed in the process.
2.
FLASHCARD QUESTION
Front
What is the active site of an enzyme?
Back
The specific region on an enzyme where substrate molecules bind and undergo a chemical reaction.
3.
FLASHCARD QUESTION
Front
What is a competitive inhibitor?
Back
A substance that resembles the substrate and competes for the active site of an enzyme, reducing the enzyme's activity.
4.
FLASHCARD QUESTION
Front
What is a non-competitive inhibitor?
Back
A substance that binds to an enzyme at a site other than the active site, changing the enzyme's shape and reducing its activity.
5.
FLASHCARD QUESTION
Front
What is an allosteric regulator?
Back
A molecule that binds to an enzyme at a site other than the active site, influencing the enzyme's activity.
6.
FLASHCARD QUESTION
Front
How does pH affect enzyme activity?
Back
Each enzyme has an optimal pH range; deviations can lead to decreased activity or denaturation.
7.
FLASHCARD QUESTION
Front
How does temperature affect enzyme activity?
Back
Increased temperature generally increases enzyme activity up to a point, after which the enzyme may denature.
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