Krebs Cycle Quiz: Acetyl CoA, Citric Acid, and Cellular Location
12 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

Where does the citric acid cycle occur within a eukaryotic cell?

  • The cytoplasm
  • Matrix of the mitochondrion (correct)
  • The cell membrane
  • The cristae of the mitochondrion
  • What oxidizing agent is used to temporarily store high energy electrons harvested from glucose molecules in a series of gradual steps in the cytoplasm?

  • FADH2
  • Oxygen
  • ADP
  • NAD+ (correct)
  • Which of the following is converted to a different organic molecule during fermentation?

  • Ethanol; reduced
  • Acetyl-CoA; reduced
  • Lactate; oxidized
  • Pyruvate; reduced (correct)
  • What happens to the oxygen that is used in cellular respiration?

    <p>It is reduced to form water</p> Signup and view all the answers

    Where does pyruvate oxidation occur in eukaryotic cells?

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

    What is the total amount of energy released during the Citric acid cycle?

    <p>2 ATP plus redox reactions have formed 6 NADH and 2 FADH2</p> Signup and view all the answers

    What is the direct use of the energy released as electrons move along the electron transport chain?

    <p>To transport protons against their concentration gradient across the inner mitochondrial membrane</p> Signup and view all the answers

    What is the oxidized form of the most common electron carrier needed for both glycolysis and the citric acid cycle?

    <p>NAD+</p> Signup and view all the answers

    Why is the enzyme phosphofructokinase regulated by high levels of ATP?

    <p>To allow the substrate to be available for other reactions when the cell has ample energy</p> Signup and view all the answers

    In bacterial cell division, the process where the cell divides into two nearly equal halves is called:

    <p>Binary fission</p> Signup and view all the answers

    The DNA-wrapped histone structures that help fit the long DNA strands into the limited space of the nucleus are called:

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

    If there are 32 sister chromatids in a normal somatic cell, what is the haploid number for that cell?

    <p>16</p> Signup and view all the answers

    More Like This

    The Krebs Cycle Quiz
    10 questions

    The Krebs Cycle Quiz

    InestimableTurquoise avatar
    InestimableTurquoise
    Cellular Respiration Pathway Quiz
    18 questions
    Krebs Cycle Overview
    6 questions

    Krebs Cycle Overview

    CompliantMemphis avatar
    CompliantMemphis
    Use Quizgecko on...
    Browser
    Browser