GED Science Practice

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What is the function of an antibiotic?

  1. Blocks the growth and reproduction of viruses

  2. Stimulates bacterial growth

  3. Neutralizes toxins in the body

  4. Prevents the growth and activity of bacteria

The correct answer is: Prevents the growth and activity of bacteria

Antibiotics are a type of medication that specifically targets bacteria, inhibiting their growth and activity. This can be highly effective in treating bacterial infections. Option A, blocking the growth and reproduction of viruses, is incorrect as antibiotics do not have an effect on viruses, which require antiviral medication for treatment. Option B, stimulating bacterial growth, is incorrect as antibiotics actually have the opposite effect, suppressing the growth of bacteria. Option C, neutralizing toxins in the body, is incorrect as this is a function of antitoxin medication, not antibiotics. Therefore, the best answer is D, which accurately describes the function of antibiotics.

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