Bacteriology quizz

Microorganisms that can be found thriving in icy-cold climates would be considered....

• barophiles

• thermophiles

• mesophiles

• psychrophiles

• bibliophil

Which phase in a population growth curve is associated with no increase or decrease in population?

• lag phase

• logarithmic phase

• stationary phase

• death phase

which microbe would you most likely find in large number in an extremely hypertonic salty

• Mycobacterium

• Bacillus

• Staphylococcus

• Halobacterium salinarum

• Salmonella

which term best discribes an organism that can't exist in the presence of oxygen

• obligate aerobe

• facultative aerobe

• obligate anaerobe

• falculatative anaerobe

• Microaerophile

Time required by the cell to undergo binary fission is called the:

• exponential growth rate

• growth curve

• generation time

• lag period

• stationary phase

A visible cluster of cells that have arisen from one parent cell growing on the surface of a growth medium is called:

• bacterium

• inoculum

• cells

• colony

• coccus

The stage in the population growth curve with the highest rate of cell division is called the ......................

• stationary

• lag phase

• exponential phase

• death phase

which category of microbes would you expect to grow best on or in your body?

• pyschrophiles

• mesophiles

• thermophiles

• hyperthermophilies

An obligate halophiles requires high

• pH

• temperature

• salt

• pressure

Psychrophiles would be expected to grow

• in hot spring

• on the human body

• at refrigenation temperature

• at low pH