Mitochondria
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Questions and Answers

What is the function of porins in the outer membrane of mitochondria?

  • Facilitate the exchange of proteins and small molecules through the membrane (correct)
  • Act as an absorber and storage site for calcium
  • Regulate the amount of calcium inside a cell
  • Facilitate the production of ATP

    • Which cell type in the human body does not have mitochondria?

  • Hepatocytes (liver cells)
  • Neurons
  • Osteocytes (bone cells)
  • Erythrocytes (red blood cells) (correct)

    • What is the main function of the inner membrane cristae in mitochondria?

  • Facilitation of material exchange
  • Absorption and storage of calcium
  • Regulation of apoptosis
  • Site of energy production (correct)

    • What is the primary role of ATP synthase in mitochondria?

    <p>Carrying out oxidative phosphorylation (A)</p> Signup and view all the answers

    Which organelle is responsible for hosting the DNA material of mitochondria?

    <p>Matrix (A)</p> Signup and view all the answers

    How do mitochondria reproduce?

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

    What is the suggested origin of mitochondria according to scientists?

    <p>They existed as bacteria (A)</p> Signup and view all the answers

    What is the primary function of mitochondria?

    <p>Producing energy for the cell (D)</p> Signup and view all the answers

    What distinguishes mitochondria from most organelles in a eukaryotic cell?

    <p>They have two different layers of membrane (B)</p> Signup and view all the answers

    Where are mitochondria located within eukaryotic cells?

    <p>In the cytoplasm (B)</p> Signup and view all the answers

    What is the process through which mitochondria reproduce?

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

    What is the suggested origin of mitochondria according to scientists?

    <p>They existed as bacteria (D)</p> Signup and view all the answers

    What is the primary function of mitochondria within a eukaryotic cell?

    <p>Producing energy for the cell (A)</p> Signup and view all the answers

    How do mitochondria differ from most organelles in a eukaryotic cell?

    <p>They have two different layers of membrane (B)</p> Signup and view all the answers

    Where are the mitochondria located within eukaryotic cells?

    <p>In the cytoplasm (B)</p> Signup and view all the answers

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