Enzymes

Flashcard
•
Biology
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are enzymes?
Back
Enzymes are biological catalysts that speed up chemical reactions in living organisms by lowering the activation energy required for the reaction.
2.
FLASHCARD QUESTION
Front
What is denaturation of an enzyme?
Back
Denaturation is the process in which an enzyme loses its functional shape due to external factors like temperature or pH, rendering it inactive.
3.
FLASHCARD QUESTION
Front
Which factors can denature an enzyme?
Back
High temperature, low pH, and high pH can denature an enzyme, while low temperature typically does not.
4.
FLASHCARD QUESTION
Front
What is competitive inhibition?
Back
Competitive inhibition occurs when a substance competes with the substrate for binding to the active site of an enzyme, reducing the enzyme's activity.
5.
FLASHCARD QUESTION
Front
How can competitive inhibition be overcome?
Back
Increasing substrate concentration can help overcome competitive inhibition by outcompeting the inhibitor for the active site.
6.
FLASHCARD QUESTION
Front
What is noncompetitive inhibition?
Back
Noncompetitive inhibition occurs when an inhibitor binds to an allosteric site on the enzyme, changing its shape and reducing its activity regardless of substrate concentration.
7.
FLASHCARD QUESTION
Front
How does a noncompetitive inhibitor affect reaction rates?
Back
A noncompetitive inhibitor decreases reaction rates by binding to the allosteric site, altering the enzyme's shape and function.
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