Enzymes

Flashcard
•
Biology
•
9th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the primary function of enzymes in biological systems?
Back
Enzymes speed up chemical reactions by lowering the activation energy required.
2.
FLASHCARD QUESTION
Front
What happens to enzymes when they are exposed to high temperatures?
Back
The shapes of the enzymes are altered, which can lead to denaturation and loss of function.
3.
FLASHCARD QUESTION
Front
True or False: Every enzyme has an optimal temperature and pH at which it functions best.
Back
True.
4.
FLASHCARD QUESTION
Front
What is the optimum pH of an enzyme if a graph indicates maximum activity at pH 6.6?
Back
The optimum pH of the enzyme is 6.6.
5.
FLASHCARD QUESTION
Front
What term is used to describe a substance that speeds up a chemical reaction?
Back
Catalyst.
6.
FLASHCARD QUESTION
Front
What is the role of the active site in an enzyme?
Back
The active site is the region on the enzyme where substrate molecules bind and undergo a chemical reaction.
7.
FLASHCARD QUESTION
Front
How do competitive inhibitors affect enzyme activity?
Back
Competitive inhibitors bind to the active site of the enzyme, preventing substrate binding and reducing enzyme activity.
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