University of Idaho eTOX - Principles of Environmental Toxicology the study of Toxic Substances in the Environment
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Lecture 8 - Biotransformation

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Learning Objectives

  1. Explain the role of biotransformation in toxicokinetics.
  2. Describe how biotransformation facilitates the elimination of toxicants or their metabolites from the body.
  3. Distinguish between Phase I and Phase II biotransformation reactions.
  4. Define bioactivation or toxication.
  5. Identify the tissues responsible for biotransformation reactions.
  6. List the factors affecting biotransformation in humans.
  7. Summarize the role of elimination in toxicokinetics.
  8. Describe processes occurring in the kidney, liver, and lung as related to the elimination of toxicants.

Advance Reading

  1. Richards, pp 139-153; pp 132-137
  2. NLM Toxicology Tutor Biotransformation
  3. NLM Toxicology Tutor Excretion

Resources

Keywords

  • Anabolism
  • Bioactivation
  • Biological half-life (t1/2)
  • Biotransformation
  • Catabolism
  • Conjugate
  • Conjugation reactions
  • Cytochrome p-450
  • Cytosolic enzymes
  • Detoxication
  • Enterohepatic loop
  • Fecal excretion
  • Glomerular filtration
  • Glucuronidation
  • Hydrolysis
  • Intestinal excretion
  • Ionized molecules
  • Metabolism
  • Microsomal enzymes
  • Nephrons
  • Oxidation
  • Phase I biotransformation
  • Phase II biotransformation
  • Reabsorption
  • Reduction
  • Secretion
  • Sulfate conjugation
  • Toxication

 

Lecture Materials

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Lecture Activities

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Discussion

 

Question or Comment? E-mail etox@uidaho.edu

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