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Kaplan Qbank USMLE



Author5 Posts
  #1

Many aromatic hydrocarbons such as benzopyrene found in cigarette smoke are procarcinogens. They are converted to more react DNA - damaging carcinogens by cellular metabolism. This metabolic activation to reactive carcinogens involves which of the following actions?

A. Conjugation with gluthionone by gluthionone transferases
B. Glucirodination by glucoronosyl transferase
C. Glycosylation by glycosyl transferases
D. Oxidation by cytochrome p450
E. Oxidation by mitochondrial cytochrome A
F. Sulfation by Sulfotransferases

  #2

D

  #3

I guessed E. Can you please explain. Thank you for stoppin by

  #4

I think is D - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd...

  #5

yeah I chose D too.

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