gs1medium

Consider the following statements :

  1. 1.Biofilms can form on medical implants within human tissues.
  2. 2.Biofilms can form on food and food processing surfaces.
  3. 3.Biofilms can exhibit antibiotic resistance.

Which of the statements given above are correct ?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
▶ Answer & Explanation

Correct answer: D. 1, 2 and 3

Biofilms are communities of microorganisms encased in a self-produced matrix, which allows them to adhere to surfaces. These communities are found in diverse environments, including medical implants like catheters or artificial joints within the body, on food surfaces, and in food processing equipment. A significant characteristic of biofilms is their increased resistance to antimicrobial agents, including antibiotics, due to the protective matrix and altered microbial physiology.

Source: UPSC gs1 2022

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