Who are the Microbes? Flashcards
two major types of microbes
cellular and acellular
types of cellular microbes
fungi
protozoa
algae
bacteria
archaea
types of acellular microbes
viruses
prions
viroids
fungi
cellular microbes including yeast and mold
protozoa
cellular microbes including giardia lambria
bacteria
cellular microbes including mycobacterium tuberculosis
archaea
cellular microbes including thermophilus acquaticus
viruses
acellular microbes made up of a protein shell and nucleic acids (DNA or RNA, never both)
neither prokaryotic or eukaryotic
obligate intracellular parasites: can only reproduce in a host cell
do not eat or make waste
don’t grow in size, but do grow in number
prions
acellular microbes made of proteins only
viroids
acellular microbes made of RNA only
prokaryotes
cells with no nucleus or membrane-bound organelles, for example bacteria and archaea
eukaryotes
cells that have a nucleus and membrane-bound organelles, for example fungi, protozoa, and algae
transitional organisms
organisms that may lack one or more membrane-bound organelles, but are still considered eukaryotes (for example, giardia)
3 domains of microbes
- bacteria
- archaea
- eukarya
(categorizing cellular organisms by their rRNA sequences)
naming bacteria
genus –> species –> strain