What is a biofilm?
Q: What is a biofilm?
A: A biofilm is a group of microorganisms that stick to cell surfaces and create a slimy layer outside the cells of the body.
Q: What do cells in the biofilm produce?
A: Cells in the biofilm produce extracellular polysaccharides, proteins, lipids, and DNA.
Q: Why are biofilms considered a community lifestyle for microorganisms?
A: Biofilms are considered a community lifestyle for microorganisms because they have a three-dimensional structure and enable sharing of nutrients among the bacteria.
Q: How have biofilms been metaphorically described?
A: Biofilms have been metaphorically described as "cities for microbes".
Q: What are some harmful factors that biofilm bacteria are sheltered from?
A: Biofilm bacteria are sheltered from harmful factors in their local environment such as desiccation, antibiotics, and the host's immune system.
Q: What is an example of a biofilm?
A: The film of bacteria that live on your teeth is an example of a biofilm.
Q: Can biofilms form on inorganic objects?
A: Yes, biofilms can form on inorganic objects like stones in water.
