Formation and properties of biofilms
Question
Consider the following statements: Which of the statements given above are correct?
- 1.
Biofilms can form on medical implants within human tissues.
- 2.
Biofilms can form on food and food processing surfaces.
- 3.
Biofilms can exhibit antibiotic resistance.
Options
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
Explanation
All three statements are correct. A biofilm is a collective of microorganisms that stick to each other and adhere to a surface (like dental plaque). They frequently form on foreign bodies like medical implants and industrial food processing equipment. The thick extracellular matrix they secrete makes them notoriously highly resistant to antibiotics and disinfectants.
Answer: (d).
Question details
Year
2022
Paper
GS Paper 1
Question
Q37
Subject
Science & Technology
Sub-topic
Health & Medical Science
Type
Statement-based
Difficulty
Medium
Nature
Static
Source hint
NCERT Biology Cl.12 / Microbial Matrix Biofilm Formations
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