Microbial World Flashcards
The only prokaryotic macroorganism is:
there are no prokaryotic macroorganisms
The first observation of fungi was by:
Robert Hooke
The first description of bacteria was by:
Antonie van Leeuwenhoek
What are microorganisms doing?
eating, storing food, defending, reproducing
Define autotroph and heterotroph
autotrophs produce organic molecules
heterotrophs consume organic molecules
List the components of macromolecules in microbial cells by great quantity to least
Proteins, RNA, lipids, sugars, DNA
Who discovered the third domain, archaea?
Carl Woese
Which domain(s) have a nuclear membrane?
Eukarya
Do bacteria and archaea have membrane-bound organelles?
It is very rare
How common is the cell wall in the three domains?
Nearly all bacteria and archaea have cell walls
Some eukarya have cell walls
How many RNA polymerases do species in each domain have?
Bacteria and archaea have one RNA polymerase
Archaea
Eukarya have three main RNA polymerases
Which domains have histones?
Eukarya and Archaea
What organelles were uptaken during early endosymbiosis?
mitochondria and chloroplasts
What did Louis Pasteur do?
- developed rabies vaccine
- developed pasteurization
- disproved spontaneous generation
What are Koch’s postulates?
- the microbe must be found in everybody with the disease but not those without it
- a pure culture of the microbe is obtained
- putting the microbe in a healthy test host causes the same disease
- the suspected microbe is recovered from test host
