Microbiology: Classifying Microbes

Front 1

Viruses

Back 1

Nucleic acid (DNA or RNA) surrounded by a protective protein coat.
Obligate intracellular parasites.
Infect all forms of life

Front 2

Viroids

Back 2

Microbes composed of RNA, not protected by a protein coat.
Cause disease in plants.

Front 3

Prions

Back 3

Consist of abnormal forms of a protein found in the central nervous system.
Do not contain DNA or RNA.
Cause diseases in humans and animals.

Front 4

Fungi

Back 4

are eukaryotes (genetic material is surrounded by a membrane).
can be unicellular or multicellular
contain cell walls made of chitin.
obtain nutrients by degrading organic material.

Front 5

Eukaryotes

Back 5

Fungi, Protozoa, Algae, Helminths

Front 6

Archaea

Back 6

Microbes in this group are unicellular.
Microbes in this group are prokaryotic.
Microbes in this group have cell walls that lack peptidoglycan.
Microbes in this group divide by binary fission.
Microbes in this group move using flagella.
Microbes in this group live in extreme environments

Front 7

Bacteria

Back 7

Microbes in this group are unicellular.
Microbes in this group are prokaryotic (genetic material is not surrounded by a membrane).
Microbes in this group contain cell walls composed of peptidoglycan.
Microbes in this group divide by binary fission.
Microbes in this group move using flagella.
Can be gram positive or negative

Front 8

Protozoa

Back 8

are eukaryotes.
are unicellular.
do not contain cell walls.
use pseudopods (false feet), flagella, or cilia for movement.

Front 9

Algae

Back 9

are eukaryotes.
use the process of photosynthesis to capture atmospheric carbon dioxide to produce oxygen and carbohydrates.
contain cell walls made of cellulose.
Some use flagella for motility.

Front 10

Helminths

Back 10

are eukaryotes.
are multicellular worms.
are typically parasites.