Enzymes

Enzymes

Assessment

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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