Summary
Structured communities of microbes embedded in a self-made matrix, resistant to antibiotics and immune attack.
In depth
Cells attach, produce extracellular polymeric substances, mature and disperse. They cause dental plaque, catheter infections and cystic fibrosis lung infections and can be 1000 times more resistant to antibiotics.
Biofilms form on surfaces: teeth, catheters, pipes. Extracellular matrix of polysaccharides, DNA and proteins protects bacteria. Cells inside are metabolically diverse.
Example: dental plaque is a biofilm.
Frequently asked questions
What is Biofilms?
Structured communities of microbes embedded in a self-made matrix, resistant to antibiotics and immune attack.
Which area of biology covers Biofilms, and how advanced is it?
Biofilms is one of the 54 topics in Microbiology. It is rated Advanced, so it suits learners who want specialist depth. Related topics in this area include Fungal Pathogens, Microorganisms, Antibiotics.
Can you give an example of Biofilms?
Pseudomonas aeruginosa biofilms in the lungs of cystic fibrosis patients.
What should I learn before Biofilms?
Work through the Beginner topics in Microbiology first, such as Microorganisms, Bacteria, Archaea, then return to Biofilms. Advanced topics assume the Intermediate vocabulary.
What topics are related to Biofilms?
The closest topics to Biofilms are Fungal Pathogens, Microorganisms, Antibiotics, Microbiome. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Biofilms?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Biofilms. To practise the whole of Microbiology, use the Microbiology quiz.
How is Biofilms different from Fungal Pathogens?
Biofilms: Structured communities of microbes embedded in a self-made matrix, resistant to antibiotics and immune attack. Fungal Pathogens: Fungi like Candida and Aspergillus cause infections, particularly in immunocompromised people. Read both side by side and note what each one explains.
How should I study Biofilms step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Fungal Pathogens and explain the difference aloud. Finally, take the Microbiology quiz and come back to this page for any question you miss.