they are proteins and many are enzymes. they are released into the surrounding medium. Affect cells lining the GI tract
They are part of the outer portion of the cell wall of most gram-negative bacteria and less potent. It is liberated into surrounding environment only when the cell dies. Sx are fever, weakness, and sometimes shock.
Direct method of bacteria enumeration
cell counts using direct microscopic count
used to atain total count of live and dead organisms. cells per mililiter calculated using a conversion factor
proteins that catalyze chemical reactions in living organisms. also break down cells, dissolve minerals, and form/ dissolve blood clots. They are detectable through chemical reactions
type of enzyme that kills RBCs
type of enzyme that dissolves some types of blood clots in cases of obstructed coronary arteries
Kills/inhibits the growth of microorganisms. Used on tissues/mucus membranes. Not designed for internal use
affects cell wall synthesis in fungi
use carbon dioxide as their carbon source.
require an organic carbon source, organic acids, and carbohydrates as their carbon.
type of osmotic pressure that's outside the cell and has lower pressure than the cell
type of osmotic pressure that's outside the cell and has higher pressure than the cell
type of osmotic pressure that's outside the cell and has equal pressure.
gas requirements for microbial growth that requires oxygen but in lower concentrations than that of the atmosphere
temperature requirement for microbial growth that prefers hot temperatures; 113-149 degrees F
temperature requirement for microbial growth that prefers medium temperatures; 68-98.6 degrees F
sterilization not common
sterilization used in pharmacy
sterilization ionizing/ non-ionizing
sterilization dry/steam heat
bacterial growth phase where the organism is getting used to its environment
bacterial growth phase where microbes begin to reproduce in infinite numbers
bacterial growth phase where metabolic activity slows, numbers remain the same, and endospores are formed
bacterial growth phase where the microbes have used up too many nutrients or created too much waste