All of the below are examples of a biofilm EXCEPT
A)archaea as part of the plankton community in the open ocean.
B)dental plaque.
C)vegetations on a patient heart valve.
D)slimy layer on riverbed rocks.
E)infection of a patient catheter.

Question

Quizplus · Accepted Answer

Archaea as part of the plankton community in the open ocean are not an example of a biofilm. Biofilms are collections of microorganisms, such as bacteria or fungi, that stick together on a surface and produce a slimy matrix to protect themselves from environmental stresses. Archaea in the open ocean are part of the plankton, which is a dispersed community of organisms that are not necessarily attached to a surface or protected by a biofilm.

All of the Below Are Examples of a Biofilm EXCEPT