Microbiology Crossword Chap. 21-22
diplobacilli
a double bacillus, two being linked end to end to each other
streptobacilli
a genus of bacteria containing gram negative rods, which form a chain like colony
staphylococcus
a genus of gram positive, non-motile bacteria that tend to aggregate in irregular, grape like clusters
binary fission
a method of asexual reproduction in bacteria in which cells split into two parts, each of which develops into a completer individual
strict aerobe
a microbe that can live only in the presence of oxygen
strict anaerobe
a microbe that can survive only in an area without oxygen present
obligate parasite
a parasite that is completely dependent on its living host for survival
glycocalyx
a sticky, gelatinous coating that surrounds the cell wall
mutualism
a symbiotic relationship in which two different species live in close association to the mutual benefit of each other
endospore
a thick walled cell produced by a bacterium to enable it to survive unfavorable environmental conditions
coccus
a type of bacteria that is spherical or ovoid in form
bacterial colony
a visible group of bacteria growing on a solid medium, presumably arising from a single microorganism
parasitism
an interactive relationship between two organisms in which one is harmed and the other benefits
obligate saprophyte
an organism that can survive only on dead or decaying organic matter
diplococci
any of various spherical bacteria appearing in pairs
bacillus
any rod shaped microorganism
psychrophiles
bacteria that prefer cold, thriving at temperatures between 0 degrees celcius and 25 degrees celcius
mesophiles
bacteria that prefers moderate temperature and develops best between 25 degrees celcius and 40 degrees celcius
thermophiles
bacteria that thrive best at high temperatures-between 40 degrees celsius and 70 degrees celsius
peritrichous
bacterium with flagella distributed over the entire cell
amphitrichous
bacterium with one flagellum at each end of cell
monotrichous
bacterium with only one flagellum
iophotrichous
bacterium with two or more flagella on either end
streptococci
gram positive spherically shaped bacteria that occur in chains
iacultative
having the capacity to do something that is not compulsory; in particular, having the ability to live or adapt to certain conditions
flagella
long, whip like filament containg appendages that propel bacteria in liquid.
microaerphilic
microorganisms requiring little free oxygen
antagonism
mutual opposition or contrary action; the inhibition of one bacterium by another
saprophytes
organisms that survive only on dead or decaying organic matter
indigenous flora
plant life occurring or adapted for living in a specific environment
osmotic pressure
pressure that develops when two solutions of different concentrations are separated by a semipermiable membrane
phospholipids
repeating units of fats and clusters of phosphorus
heterotrophic
requiring complex organic food from a carbon source in order to grow and develop
autotrophic
self-nourishing microorganisms that are capable of growing in the absence of organic compounds
maximum temperature
temperature above which bacterial growth will not take place
optimum temperature
temperature at which organisms grow best
minimum temperature
temperature below which bacterial growth will not take place
synergism
the harmonious action of two microorganisms producing an effort that neither could produce alone
symbiosis
the living together in close association of different species
sporulation
the process of forming an endospore
mycoplasmas
the smallest known bacteria that can grow and reproduce outside the living host cell
morphology
the study of the size, shape, and arrangements of microorganisms
commensalism
the symbiotic relationship of two organisms of different species in which one gains some benefit such as protection or nourishment
