Chapter 20 & 21 Quiz
20 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

During which process are high-energy electron carriers (NADH and FADH2) generated?

  • Citric Acid Cycle (correct)
  • Electron Transport Chain
  • Glycolysis
  • Oxidative Phosphorylation

    • What is the main function of the electron transport chain?

  • To produce carbon fuels
  • To generate ATP
  • To transfer electrons to oxygen (correct)
  • To convert NADH to FADH2

    • What powers ATP synthesis by oxidative phosphorylation?

  • The production of carbon fuels
  • The movement of protons (correct)
  • The breakdown of ATP
  • The transfer of electrons

    • What is the primary catabolic function of the citric acid cycle?

    <p>Harvesting of high-energy electrons from carbon fuels (in the form of NADH and FADH2)</p> Signup and view all the answers

    How many protons does it take to catalyze the production of a single ATP if NADH pumps 10 H+ and is equal to 2.5 ATP equivalents?

    <p>4 H+</p> Signup and view all the answers

    How many electrons does FADH2 pump in total and how many ATP does it make?

    <p>4 electrons and 1 ATP</p> Signup and view all the answers

    What is the reduction potential of a strong reducing agent like NADH?

    <p>Negative</p> Signup and view all the answers

    What is the reduction potential of a strong oxidizing agent like O2?

    <p>Positive</p> Signup and view all the answers

    What is the role of electron flow through the electron-transport chain?

    <p>To create a proton gradient</p> Signup and view all the answers

    What is the function of the proton gradient created by the electron-transport chain?

    <p>To power ATP synthesis</p> Signup and view all the answers

    Which complex in the electron transport chain is responsible for the transfer of electrons from NADH to coenzyme Q?

    <p>Complex I</p> Signup and view all the answers

    How many hydrogen ions are pumped out of the matrix of the mitochondrion when two electrons from NADH are transferred to coenzyme Q?

    <p>4</p> Signup and view all the answers

    Which complex serves as the electron transporter between Complex I and Complex III, as well as Complex II and Complex III?

    <p>Complex II</p> Signup and view all the answers

    Which complex in the electron transport chain is responsible for the transfer of electrons from produced by Complex I and Complex II to oxidized cytochrome c?

    <p>Complex III</p> Signup and view all the answers

    Which complex in the electron transport chain is responsible for the transfer of electrons from the reduced form of cytochrome c to molecular oxygen to form water?

    <p>Complex IV</p> Signup and view all the answers

    What is the function of the proton motive force in chemiosmosis?

    <p>To drive the synthesis of ATP by ATP synthase</p> Signup and view all the answers

    What happens to the H+ concentration in the matrix during chemiosmosis?

    <p>It becomes lower</p> Signup and view all the answers

    What is the charge on the matrix side of the inner mitochondrial membrane during chemiosmosis?

    <p>Negative</p> Signup and view all the answers

    What drives the flow of protons back into the matrix during chemiosmosis?

    <p>The H+ concentration gradient</p> Signup and view all the answers

    What is the final product formed when molecular oxygen accepts electrons from the reduced form of cytochrome c?

    <p>Water</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser