Microbes Flashcards
(17 cards)
Archaea cell walls are made of
Protein
Archaea
More common with eukarya (histons, RNA polymerse,
Ecologically diverse, harsh (hot, salty, methane, acidic
Distinctive membranes
Bacteria cell shape
Sphere, rod, comma, spiral
Bacteria cell wall is made up of
Peptidglycan (carbohydrates + proteins)
Mucilage (bacteria)
Extra cellular substances
Bacterial movement
Flagella, pili, buoyancy
Bacteria survival
Akineles (?)
Endospores
classification of microbes
Energy source
Carbon source
Response to oxygen
Specialized metabolism
Autotroph
photoautotroph
Chemolithoautotroph
Heterotroph
Photoheterotroph
Chemoheterotroph
Photoautotroph
Use light + CO2 + H20 -> ATP + Organic
Chemolithoautotrophs
Chem energy + CO2 -> organic compounds
Ex. Nitrification
Photoheterotroph
Light energy -> ATP and organics
Chemoheterotroph
Organism must provide energy and carbon
Response to oxygen
Aerobe - obligate
Anaerobe - obligate, aerotolerant, facultative
Specialized metabolism
Produce O2 - cyanobacteria
Nitrogen fixation
Consume methane
Koch’s postulates
Presence of organism correlates with hosts symptoms
Isolate organism and grow in pure vulture
Pure culture organism causes disease in new host
Isolate same organism from same host