IB Biology · C1.1 · SL and HL

C1.1 Enzymes and Metabolism

10 review questions with answers for C1.1 Enzymes and Metabolism, marked SL and HL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.

A question from this set

An inhibitor that competes with the substrate for the active site, so raising substrate concentration reduces its effect?

  • Optimum temperature
  • Competitive inhibitorRight answer
  • End-product inhibition
  • Non-competitive inhibitor
From C1.1 Enzymes and Metabolism, 10 questions.

All 10 questions and answers

  1. An inhibitor that competes with the substrate for the active site, so raising substrate concentration reduces its effect?

    Answer: Competitive inhibitor

  2. An inhibitor that binds to an allosteric site, changing the enzyme's shape?

    Answer: Non-competitive inhibitor

  3. Inhibition of an early enzyme in a pathway by the pathway's final product?

    Answer: End-product inhibition

  4. A biological catalyst that speeds up chemical reactions without being consumed?

    Answer: Enzyme

  5. The specific region on an enzyme where the substrate binds for catalysis?

    Answer: Active site

  6. The model describing how an enzyme changes shape slightly to fit its substrate?

    Answer: Induced-fit model

  7. The minimum energy required for a chemical reaction to occur?

    Answer: Activation energy

  8. A permanent change in enzyme shape that destroys its functional ability?

    Answer: Denaturation

  9. What term describes the temperature at which enzyme activity is highest?

    Answer: Optimum temperature

  10. What is the pH at which enzyme activity is highest?

    Answer: Optimum pH

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