Infection Flashcards
Bacteria
unicellular prokaryotic cells
Pathogens
disease-causing microbes; germs
Bacilli
rod-shaped
Spirochetes and spirilla
spiral; coiled or wavy
Cocci
spherical
Diplo-
pairs
Strep(to)
chains
Staph(ylo)
irregular, grapelike clusters
Tetrads
grouped in a packet or square of four cells
Palisade
lying together with long sides parallel
Features of bacteria
rigid outer cell wall, cell membrane, external capsule/slime layer, flaggela, pili or fimbriae, cytoplasm, toxic substances, replicate via binary fission
Features of bacteria
rigid outer cell wall, cell membrane, external capsule/slime layer, flaggela, pili or fimbriae, cytoplasm, toxic substances, replicate via binary fission
Features of viruses
obligate intracellular parasite; protein coat, replication via assembly/release of new viral components to infect other host cells,
Features of fungi
eukaryotic, single-celled or chains of cells, hyphae, mycelium
Features of protozoa
eukaryotic, single-celled, usually parasitic
Features of helminths
worms: tapeworms, hookworms, pinworms; parasitic, eggs or larva may be ingested in contaminated food; often found in intestine and ingest nutrients meant for host; when many are present they can cause serious systemic effects
Features of algae
eukaryotic; medical concerns involving algae include toxins from marine animals who have ingested algae
Features of prions
abnormal molecule transmissible in tissues or blood of animals or humans; induces protein transformation in the brain, causing degenerative disease of the nervous system such as Creutzfeld-Jakob disease.
