Cell Biology: Mitochondria and Respiration
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Questions and Answers

What is the primary function of mitochondria in cells?

  • Photosynthesis
  • Protein synthesis
  • Cell division
  • Respiration (correct)

    • Which type of cells would be expected to contain a large number of mitochondria?

  • Skin cells
  • Red blood cells
  • Liver cells (correct)
  • Nerve cells

    • How many mitochondria can a single cell house, at minimum?

  • 2 (correct)
  • 10
  • 50
  • 1

    • What structural feature of mitochondria increases their efficiency in respiration?

    <p>Folded membrane</p> Signup and view all the answers

    What role do mitochondria play in sperm cells specifically?

    <p>Energy release for movement</p> Signup and view all the answers

    What is the primary function of mitochondria in muscle cells?

    <p>Production of energy</p> Signup and view all the answers

    Where does the respiration reaction mainly occur in the mitochondria?

    <p>Folded inner membrane</p> Signup and view all the answers

    Why is it essential for oxygen and glucose to diffuse into the mitochondria?

    <p>To facilitate energy production</p> Signup and view all the answers

    What are the products of the respiration process that occurs in the mitochondria?

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

    Why do sperm cells contain many mitochondria?

    <p>To generate energy for propulsion</p> Signup and view all the answers

    What is the primary function of the alveoli in the lungs?

    <p>Facilitate gas exchange</p> Signup and view all the answers

    Which structure serves as the connection between the mouth or nose and the lungs?

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

    What is the role of the intercostal muscles in respiration?

    <p>They assist in expanding and contracting the ribcage.</p> Signup and view all the answers

    Which of the following structures provides support to the bronchial tubes?

    <p>Rings of cartilage</p> Signup and view all the answers

    During exhalation, which muscle primarily aids in the expulsion of air from the lungs?

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

    What is the correct respiration equation?

    <p>glucose + oxygen → carbon dioxide + water + energy released</p> Signup and view all the answers

    Which gas is present in higher quantities in exhaled air compared to inhaled air?

    <p>Carbon Dioxide</p> Signup and view all the answers

    How does the temperature of exhaled air compare to inhaled air?

    <p>Exhaled air is hotter than inhaled air.</p> Signup and view all the answers

    What happens to the amount of water in exhaled air compared to inhaled air?

    <p>It is more in exhaled air.</p> Signup and view all the answers

    What does the body do with oxygen during respiration?

    <p>Uses it up, resulting in less oxygen exhaled.</p> Signup and view all the answers

    What is the primary function of cartilage rings in the trachea?

    <p>To keep the airway open</p> Signup and view all the answers

    What role do ciliated epithelial cells play in the bronchioles?

    <p>They move mucus out of the lungs</p> Signup and view all the answers

    How does the structure of alveoli facilitate gas exchange?

    <p>They provide a large surface area with thin walls</p> Signup and view all the answers

    What does mucus in the bronchioles primarily trap?

    <p>Bad bacteria</p> Signup and view all the answers

    What is the process by which oxygen moves into the blood from the alveoli?

    <p>Gas exchange</p> Signup and view all the answers

    What is the primary role of the alveoli in the respiratory system?

    <p>To facilitate gas exchange</p> Signup and view all the answers

    Which gas moves from the alveoli into the blood in the capillary?

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

    What ensures that diffusion of oxygen into the blood is efficient in the alveoli?

    <p>Large and numerous holes</p> Signup and view all the answers

    What process describes the movement of carbon dioxide from the blood into the alveoli?

    <p>Gas exchange</p> Signup and view all the answers

    How does the process of diffusion relate to gas movement in the alveoli?

    <p>Gases move from higher concentration to lower concentration</p> Signup and view all the answers

    What are the small blood vessels surrounding the air sacs in the lungs called?

    <p>Pleural capillaries</p> Signup and view all the answers

    What color are red blood cells that are carrying less oxygen depicted as?

    <p>Dark red</p> Signup and view all the answers

    Which gas is represented as coming out of the alveoli in the diagram?

    <p>Carbon dioxide</p> Signup and view all the answers

    What is the name of the process where oxygen and carbon dioxide are exchanged in the lungs?

    <p>Breathing/Respiration</p> Signup and view all the answers

    Where is carbon dioxide primarily carried in the blood?

    <p>Cells throughout the blood</p> Signup and view all the answers

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