What is the half-life of IgG antibodies in the human body?

Practice Questions

Q1
What is the half-life of IgG antibodies in the human body?
  1. 1-2 days
  2. 5-7 days
  3. 21 days
  4. 23 days

Questions & Step-by-Step Solutions

What is the half-life of IgG antibodies in the human body?
Correct Answer: 21 days
  • Step 1: Understand what half-life means. Half-life is the time it takes for half of a substance to be eliminated from the body.
  • Step 2: Know that IgG antibodies are a type of protein in the immune system that help fight infections.
  • Step 3: Research or refer to scientific sources to find the half-life of IgG antibodies.
  • Step 4: Find that the half-life of IgG antibodies in the human body is approximately 21 days.
  • Step 5: Conclude that after 21 days, half of the IgG antibodies will be gone from the body.
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