AP Biology ยท Unit 3

Unit 3: Cellular Energetics (part 1)

17 review questions with answers for Unit 3: Cellular Energetics (part 1). 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

Biological catalysts that speed up reactions by lowering activation energy?

  • Glycolysis
  • Cytosol
  • Substrate
  • EnzymesRight answer
From Unit 3: Cellular Energetics (part 1), 17 questions.

All 17 questions and answers

  1. Biological catalysts that speed up reactions by lowering activation energy?

    Answer: Enzymes

  2. The specific molecule that an enzyme acts upon?

    Answer: Substrate

  3. The specific location on an enzyme where the substrate binds?

    Answer: Active Site

  4. The initial energy investment required to start a chemical reaction?

    Answer: Activation Energy

  5. Concept that an enzyme changes shape slightly to fit its substrate perfectly?

    Answer: Induced Fit

  6. Non-protein helpers (like vitamins/minerals) required for enzyme function?

    Answer: Cofactors / Coenzymes

  7. Inhibitor that binds to the active site, blocking the substrate?

    Answer: Competitive Inhibitor

  8. Inhibitor that binds to a different site, changing the enzyme's shape?

    Answer: Noncompetitive Inhibitor

  9. The specific site where a noncompetitive inhibitor binds?

    Answer: Allosteric Site

  10. When the product of a pathway shuts down the pathway to prevent waste?

    Answer: Feedback Inhibition

  11. The permanent loss of enzyme shape due to extreme pH or temperature?

    Answer: Denaturation

  12. The temperature or pH at which an enzyme works most efficiently?

    Answer: Optimal Conditions

  13. The primary energy currency of the cell?

    Answer: ATP (Adenosine Triphosphate)

  14. The process of adding a phosphate group to a molecule to give it energy?

    Answer: Phosphorylation

  15. The primary goal of cellular respiration?

    Answer: ATP Production

  16. The metabolic pathway that breaks glucose into two pyruvate molecules?

    Answer: Glycolysis

  17. Location in the cell where glycolysis occurs?

    Answer: Cytosol

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