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Overview of Cellular Respiration quiz #1 Flashcards

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Overview of Cellular Respiration quiz #1
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  • Which simple sugar is primarily broken down in the mitochondria during cellular respiration?
    Glucose is the simple sugar that is primarily broken down in the mitochondria during cellular respiration.
  • In what type of cells does cellular respiration occur?
    Cellular respiration occurs in both plant and animal cells, as well as most eukaryotic cells.
  • What is the main waste product generated by cellular respiration?
    The main waste product of cellular respiration is carbon dioxide (CO2).
  • Which organelle is the primary site of cellular respiration in eukaryotic cells?
    The mitochondrion is the primary organelle where cellular respiration occurs in eukaryotic cells.
  • Where does respiration primarily take place within a eukaryotic cell?
    Respiration primarily takes place in the mitochondria within a eukaryotic cell.
  • What molecule is produced when pyruvate is oxidized before entering the Krebs cycle?
    When pyruvate is oxidized, it produces acetyl CoA. This acetyl CoA then enters the Krebs cycle for further processing.
  • What are the main products generated by the Krebs cycle during cellular respiration?
    The Krebs cycle generates NADH, FADH2, ATP, and carbon dioxide. These products are essential for subsequent steps in cellular respiration.
  • What is the role of electron carriers in cellular respiration?
    Electron carriers transport electrons to the electron transport chain. This transfer is crucial for ATP synthesis in later stages.
  • How does the electron transport chain contribute to ATP synthesis?
    The electron transport chain pumps hydrogen ions across the membrane, creating a proton gradient. This gradient is then used to drive ATP synthesis through chemiosmotic coupling.
  • What is meant by the term 'proton motive force' in the context of cellular respiration?
    The proton motive force refers to the electrochemical gradient of hydrogen protons across a membrane. This gradient provides the energy needed for ATP production.