Lysosomes Function and Epithelial Tissues
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Questions and Answers

What accumulates as a function of age or atrophy in cells?

  • Lysosomal enzymes
  • Mucopolysaccharides
  • Late endosomes
  • Lipofuscin (correct)

    • What happens to lysosomal enzymes in the acidic environment of the late endosome?

  • They bind more strongly to their substrates
  • They become inactive
  • They dissociate from their receptors (correct)
  • They degrade lipofuscin

    • What is the relationship between late endosomes and lysosomes?

  • Late endosomes are smaller versions of lysosomes
  • Late endosomes are precursors to lysosomes
  • Lysosomes are precursors to late endosomes
  • There is no real distinction between late endosomes and lysosomes (correct)

    • What is the fate of lysosomal enzymes in the acidic environment of the late endosome?

    <p>They dissociate from their receptors</p> Signup and view all the answers

    How do late endosomes differ from lysosomes?

    <p>There is no real distinction between late endosomes and lysosomes</p> Signup and view all the answers

    What role do lysosomes play in the human body?

    <p>Metabolism of several substances</p> Signup and view all the answers

    What accumulates as a function of age or atrophy in cells?

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

    What is the source of material received by late endosomes?

    <p>Plasma membrane by endocytosis and newly synthesized lysosomal hydrolases</p> Signup and view all the answers

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