antibiotics and disinfectants Flashcards
what are antibiotics?
Low molecular weight compounds made by microbes or chemically synthesized, which inhibit or kill other microorganisms
what are sterilants?
kills all microorganisms
what are sanitizers?
agents are used to lower levels of bacterial cells
what are bacteriostatic?
an agent that only inhibits the growth of bacterial cells
what are bactericidal?
an agent that kills bacterial cells
what is the zone of inhibition?
Area around a disk where no growth has occurred due to the agent in the disk
what are types of protein synthesis inhibitors?
Tetracyclines, Chloramphenicol
what are types of RNA synthesis inhibitors?
rifampicin
what are types of DNA synthesis inhibitors?
Ciprofloxacin, Trimethoprim, and
Novobiocin
what describes the range of types of microorganisms it can kill or inhibit?
the spectrum of antibiotic activity
what is a type of broad spectrum antibiotic?
tetracyclines
what is a type of extended spectrum antibiotic?
Amoxicillin, which is a penicillin derivative
what is a type of narrow spectrum antibiotic?
polymyxins
what test is for antibiotic sensitivity?
kirby bauer test
what are disinfectants?
are substances that are applied to non-living objects to
destroy microorganisms that are living on the objects
what are antiseptics?
are antimicrobial substances that are applied to living
tissue/skin to reduce the possibility of infection
what is the minimum inhibitory concentration?
is the lowest concentration
needed to inhibit the growth of a bacteria or microbe.
what is the minimum bactericidal concentration?
is the minimum
concentration that results in bacterial death.
