Positive Feedback Mechanisms in the Body
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Questions and Answers

What organelle is responsible for breaking down fragments of organelles and large molecules inside the cell?

  • Golgi apparatus (correct)
  • Endoplasmic reticulum
  • Mitochondria
  • Nucleus
  • Which type of cells contain lysosomes with enzymes that digest foreign material like microbes?

  • Skin cells
  • White blood cells (correct)
  • Nerve cells
  • Muscle cells
  • Which type of protein fibers provide structural support, maintain cell shape, and allow contraction in muscle cells?

  • Endosomes
  • Centrosomes
  • Microfilaments (correct)
  • Microtubules
  • What is the function of microtubules in the cell?

    <p>Cell movement</p> Signup and view all the answers

    What directs the organization of microtubules within the cell?

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

    What do cell extensions mainly consist of?

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

    Which organelle consists of tiny protein fibers forming an extensive network in the cell?

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

    What is the function of fibroblasts within cells?

    <p>Structural support &amp; contraction</p> Signup and view all the answers

    What is the role of centrioles within a centrosome?

    <p>Organizing microtubules</p> Signup and view all the answers

    What do microvilli mainly cover on certain types of cells?

    <p>Cell surface</p> Signup and view all the answers

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