Asked Sep 12, 2019

Describe a biofilm and contrast a biofilm from that of normal human microbiota.

List the major branches of microbiology and define the area of study of each branch.

 Define Emerging Infectious Disease (EID) and provide examples of a prevalent EID.



Expert Answer

Step 1

Biofilm is a layer of microorganisms growing on a surface. Bacteria, fungi, and protists are known to form biofilms. Biofilms can be found underwater, underground and on the ground. Dental plaque and pond scum are common examples of biofilm.

Normal human microbiota is the population of microorganisms living on the skin and mucous membranes of human body. The human microbiome is the collection of all the microbiota that lives inside or on the surface of tissues and fluids of the body. They provide first line of defense against pathogenic infection.

Step 2

There are many branches of microbiology, some of the major branches are:

  1. Virology: study of viruses
  2. Bacteriology: study of bacteria
  3. Mycology: study of fungi
  4. Parasitology: st...

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