Factors Influencing Radiosensitivity in Biology
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Questions and Answers

What factor contributes to the heightened radiosensitivity in pediatric populations?

  • Decrease in tissue regenerative capacity
  • Lower metabolic activity
  • Decline in cellular repair mechanisms
  • Increased tissue vascularity (correct)

    • What is one of the key factors influencing radiosensitivity?

  • Cellular Differentiation (correct)
  • Chemical agents
  • Gender effect
  • Repair Mechanisms

    • How does aging affect the radiosensitivity of older individuals?

  • Decreases cellular repair mechanisms (correct)
  • Increases radiosensitivity
  • Increases cellular repair mechanisms
  • Enhances tissue regenerative capacity

    • Why are rapidly dividing cells more sensitive to radiation damage?

    <p>Radiation disrupts cell division (B)</p> Signup and view all the answers

    In what way can gender influence radiosensitivity?

    <p>Shows subtle differences due to hormonal influences (B)</p> Signup and view all the answers

    Which factor enhances the formation of free radicals and increases the likelihood of DNA damage?

    <p>Oxygen effect (B)</p> Signup and view all the answers

    How do robust DNA repair mechanisms affect radiosensitivity?

    <p>Mitigate radiation-induced damage (C)</p> Signup and view all the answers

    What type of cells are generally more radiosensitive due to having a higher proliferative capacity?

    <p>Stem cells (B)</p> Signup and view all the answers

    Which of the following is a characteristic of radiosensitizing agents?

    <p>Interfering with DNA repair processes (D)</p> Signup and view all the answers

    Under what conditions can cells become more radioresistant?

    <p>Hypoxic conditions (D)</p> Signup and view all the answers

    How can radioprotective agents influence the effects of radiation?

    <p>Scavenging free radicals (B)</p> Signup and view all the answers

    Which biological factor is not listed as influencing radiosensitivity?

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

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