ch 11 - classifying and characterizing prokaryotes

• stable resting stages • remain dormant and viable in hostile or unfavorable conditions • germinate when conditions improve

anthrax tetanus gangrene

• replicate DNA via semiconservative replication • cell grows, move daugther cells apart • form cross wall • completely divide cells • daughter cells may or may not separate

• inner portion of cell wall is deposited across a dividing cell • as the cell grows, new wall thickens • tension increases, breaking the old wall in a snapping movement • daughter cells remain

outward growth of a cell that continues to grow and eventually cuts off from the parent cell

its a giant bacterium that give “birth” to offspring that emerge from the body of a dead mother cell

viviparity

lack true peptidoglycan

microbes that require extream conditions (tempurature, pH, pressure, salinity) to survive

• thermophiles • halophiles

Convert CO2, H2, & organic acids into methane gas (CH4)

by absorbing light w pigments in thylakoids

membrane bound organells

that cholorplasssts developed from cyanobacteria

reduction of nitrogen gas to ammonia

isolate enzymes of nitrogen fixation to transport reduced nitrogen to neighboring cells in exchange for glucose

survive harsh living conditions

toxins that cause a variety of diseases in humans

mucos membranes of respiratory and urinary tracts > associated w pneumonia & UTIs

antibiotics - polymyxin - bacitracin

milk & meat products under refrigeration

human mouth stomach intestinal tract vagina

protecting the body by inhibiting the growth of pathogens

strep throat, scarlet fever, pneumonia, fetal meningitis