Microbiology

What is the main difference between viruses, bacteria and protozoa?

• Viruses perform vital functions and bacteria and protozoa do not.

• Bacteria and protozoa cause disease in all organisms and viruses do not.

• Viruses do not perform vital functions and bacteria and protozoa do.

• They are all wrong

The father of taxonomy is...

• Pasteur

• Linneo

• Margulis

• Whittaker

Thanks to Pasteur it...

• He ruled out the theory of spontaneous generation

• Organisms were classified into kingdoms

• They discovered that there were beneficial microorganisms

The main difference between bacteria and archaea is in their membrane.

• True

• False

Although there are different types of viruses, they all present...

• Capsid

  Cytoplasm

  DNA/RNA

• Capsid

  DNA/RNA

  Viral envelope

• Flagellum

  Nucleoid

  Capsid

• Membrane

  DNA/RNA

  Cytoplasm

A viroid is...

• a type of virus

• a DNA sequence

• a ARN sequence

Viruses infect by entering an organism thanks to the capsid and take advantage of the mechanisms to multiply

• True

• False

Protozoa are...

• eukaryotes

• prokaryotes

• acellular

All microorganisms share...

• be heterotrophic

• have a fast metabolism

• have an always indirect exchange of substance with the environment

Archaea can be inside an organism exerting...

• symbiosis

• parasitism

• commensalism

• all are correct