Microorganisms Flashcards
MW: Microbial World
- Organisms (living)
- Infectious Agents (nonliving)
MW: Organisms (living)
- Domain
- Bacteria
- Archaea
- Eucarya
MW: Bacteria & Archaea
Prokaryotes (unicellular)
MW: Eucarya
Eukaryotes
MW: Eukaryotes
- Algae (unicellular or multicellular)
- Protozoa (unicellular)
- Fungi (unicellular or multicellular)
- Helminths (multicellular parasites)
MW: Algae (unicellular or multicellular) & Protozoa (unicellular)
Protists
MW: Infectious Agents (nonliving)
- Viruses
- Viroids
- Prions
True or False: Although adult helminths are generally not microscopic, some stages in the life cycles of many disease-causing helminths are.
True
Organisms that can exist as _____, contain a nucleic acid genome for at least some part of their life cycle, and are capable of replicating that genome.
Single Cells
Examples of organisms that can exist as single cells are:
- Epulopiscium
- Thiomargarita
Properties of ALL Cells:
- Metabolism
- Growth
- Evolution
Properties of SOME Cells:
- Differentiation
- Communication
- Genetic Exchange
- Motility
Cells take up nutrients, transform them, and expel wastes.
Metabolism
Nutrients from the environment are converted into new cell materials to form new cells.
Growth
Cells evolve to display new properties. Phylogenetic trees capture evolutionary relationships.
Evolution
Some cells can form new cell structures such as a spore.
Differentiation
Cells interact with each other by chemical messengers.
Communication
Cells can exchange genes by several mechanisms.
Genetic Exchange
Some cells are capable of self-propulsion.
Motility
Give the 2 interconnected themes in Microbiology as a discipline:
- Understanding the nature and functioning of the microbial world.
- Applying our understanding of the microbial world for the benefit of humankind and planet Earth.
