Cellular Radiobiology Quiz
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Questions and Answers

Which biologic targets does the Single Target, Single Hit model apply to?

  • Complex multicellular organisms
  • Inorganic compounds and minerals
  • Human cells and tissues
  • Enzymes, viruses, and simple cells (correct)

What does a large D0 indicate in the context of cell survival kinetics?

  • Quiescent cells
  • Highly proliferative cells
  • Radiosensitive cells
  • Radioresistant cells (correct)

According to target theory, when will cell death occur?

  • If the target molecule is replicated
  • If the target molecule is activated
  • If the target molecule is inactivated (correct)
  • If the target molecule is mutated

In the context of radiation interaction, what is a hit?

<p>An ionization that inactivates the target molecule (D)</p> Signup and view all the answers

What does the Poisson distribution predict in the context of radiation interaction?

<p>37% of targets will be inactivated (D)</p> Signup and view all the answers

What are deterministic radiation responses characterized by?

<p>Increasing severity with increasing radiation dose (A)</p> Signup and view all the answers

Which radiation response is considered an early effect of radiation exposure?

<p>Skin effects (C)</p> Signup and view all the answers

What is the sequence of events leading to death within days or weeks after high-level radiation exposure called?

<p>Acute radiation syndrome (A)</p> Signup and view all the answers

What type of exposure is less harmful than whole-body exposure in the context of diagnostic radiology?

<p>Partial-body exposure (A)</p> Signup and view all the answers

What kind of relationship does the dose-response relationship for deterministic radiation responses exhibit?

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

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