intermediate

Biochem — 7-topic bundle

Comprehensive AI-generated study curriculum with 1 detailed note module.

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Course Syllabus

  1. Introduction to Free Radicals and Oxidative Stress
  2. Sources and Generation of Free Radicals
  3. Molecular Targets and Damage by Free Radicals
  4. The Antioxidant System: Enzymatic Components
  5. The Antioxidant System: Non-Enzymatic Components
  6. Mechanisms of Antioxidant Action
  7. Free Radicals and Disease States

Study Notes

Introduction to Free Radicals and Oxidative Stress

Free radicals are atoms or molecules that have a single, unpaired electron in their outermost shell. This makes them highly unstable and extremely reactive. To achieve stability, they'll readily "steal" an electron from another molecule. This process is called oxidation.

When a free radical oxidizes another molecule, it often damages that molecule, which can then become a new free radical itself, propagating a chain reaction of damage. This uncontrolled damage to cellular components like DNA, proteins, and lipids is known as oxidative stress.

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