AP Biology · Unit 3

Unit 3: Cellular Energetics (part 2)

17 review questions with answers for Unit 3: Cellular Energetics (part 2). 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

Does glycolysis require oxygen?

  • ATP Synthase
  • Water (H₂O)
  • Oxygen (O₂)
  • No (Anaerobic)Right answer
From Unit 3: Cellular Energetics (part 2), 17 questions.

All 17 questions and answers

  1. Does glycolysis require oxygen?

    Answer: No (Anaerobic)

  2. Electron carrier reduced in glycolysis, pyruvate oxidation and the Krebs cycle?

    Answer: NAD⁺ / NADH

  3. Location where the Krebs cycle (citric acid cycle) occurs?

    Answer: Mitochondrial Matrix

  4. The 2-carbon molecule that enters the Krebs cycle?

    Answer: Acetyl CoA

  5. The gas released as a waste product during the Krebs cycle?

    Answer: Carbon Dioxide (CO₂)

  6. The two electron carriers produced in the Krebs cycle to power the ETC?

    Answer: NADH and FADH₂

  7. High-energy molecule produced in small amounts during glycolysis and the Krebs cycle?

    Answer: ATP

  8. Location of the electron transport chain in eukaryotes?

    Answer: Inner Mitochondrial Membrane (Cristae)

  9. The final electron acceptor at the end of the ETC?

    Answer: Oxygen (O₂)

  10. What is formed when oxygen accepts electrons and hydrogen ions?

    Answer: Water (H₂O)

  11. The process of using a proton (H⁺) gradient to drive ATP synthesis?

    Answer: Chemiosmosis

  12. The enzyme that actually builds ATP as protons flow through it?

    Answer: ATP Synthase

  13. The type of phosphorylation that occurs in the ETC?

    Answer: Oxidative Phosphorylation

  14. General term for the anaerobic pathways (lactic acid or alcohol) that let glycolysis continue without oxygen?

    Answer: Fermentation

  15. The main purpose of fermentation is to recycle ______ so glycolysis can repeat?

    Answer: NAD⁺

  16. Type of fermentation that occurs in human muscle cells?

    Answer: Lactic Acid Fermentation

  17. Type of fermentation that produces CO₂ and ethanol (used by yeast)?

    Answer: Alcohol Fermentation

Play it as a class game

Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.

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