Cell Cycle Phases and Cell States Quiz
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Questions and Answers

Which of the following accurately describes mechlorethamine?

  • It leaves a highly reactive aziridinium cation. (correct)
  • It is part of the CHOP regimen for lymphoma treatment.
  • It is used in the treatment of leukemia.
  • It is an enzyme-mediated reaction.

What is the purpose of administering sodium thiosulfate in cases of mechlorethamine extravasation?

  • To enhance the cytotoxic effects of mechlorethamine.
  • To increase the water solubility of the resulting adduct. (correct)
  • To prevent the formation of the aziridinium cation.
  • To neutralize the reactive aziridinium cation.

How was the reactivity of mechlorethamine reduced in the development of chlorambucil and melphalan?

  • By attaching the nitrogen to a phenyl ring.
  • By utilizing more highly electron-withdrawing groups as in cyclophosphamide.
  • By replacing the weakly electron-donating methyl group with electron-withdrawing groups.
  • Both (a) and (b). (correct)

What is the purpose of the electron-withdrawing groups in cyclophosphamide and ifosfamide?

<p>To require cytochrome P450 activation for aziridinium cation formation. (B)</p> Signup and view all the answers

Which of the following is associated with bladder toxicity in cyclophosphamide and ifosfamide?

<p>Acrolein, a potential electrophile. (A)</p> Signup and view all the answers

What is the purpose of the reversible rearrangement in the liver for cyclophosphamide and ifosfamide?

<p>To activate the compounds for aziridinium cation formation. (C)</p> Signup and view all the answers

Which of the following statements about mechlorethamine is correct?

<p>It is used in the treatment of Hodgkin's lymphoma. (B)</p> Signup and view all the answers

What is the purpose of reducing the nucleophilicity of nitrogen in mechlorethamine analogues?

<p>To slow down aziridinium cation formation. (D)</p> Signup and view all the answers

Which of the following statements about the MOPP regimen is correct?

<p>It stands for mechlorethamine, vincristine, procarbazine, and prednisone. (C)</p> Signup and view all the answers

What is the purpose of attaching the nitrogen to a phenyl ring in chlorambucil and melphalan?

<p>To reduce the reactivity of the compounds. (D)</p> Signup and view all the answers

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