Microbiology: Chapter 6

Front 1

Acidophile

Back 1

A microorganism that has its growth optimum between about pH 0 and 5.5

Front 2

Aerobe

Back 2

An organism that grows in the presence of atmospheric oxygen

Front 3

Aerotolerant Anaerobe

Back 3

An organism that grows equally well whether or not oxygen is present

Front 4

Alkalophile

Back 4

A microorganism that grows best at pHs from about 8.5 to 11.5

Front 5

Anaerobe

Back 5

An organism that grows in the absence of free oxygen

Front 6

Balanced Growth

Back 6

Microbial growth in which all cellular components are synthesized at constant rates relative to each other

Front 7

Barophilic (Barophile)

Back 7

Organisms that prefer or require high pressures for growth and reproduction

Front 8

Barotolerant

Back 8

Organisms that can grow and reproduce at high pressures but do not require them

Front 9

Batch Culture

Back 9

A culture of microorgs produced by inoculating a closed culture vessel containing a single batch of medium

Front 10

Cardinal Temperatures

Back 10

Minimum, Optimum, and Maximum growth temps

Front 11

Chemostat

Back 11

A continuous culture apparatus that feeds medium into the culture vessel at the same rate as medium containing microorgs is removed; the medium in a chemostat contains one essential nurtrient in a limiting quantity

Front 12

Coenocytic

Back 12

Refers to a multinucleate cell or hypha formed by repeated nuclear divisions not accompanied by cell divisions

Front 13

Colony Forming Units (CFU)

Back 13

The number of microorgs that form colonies when cultured using spread plate or pour plates; an indication of the number of viable microorgs in a sample

Front 14

Compatible Solutes

Back 14

Solutes that are compatible with metabolism and growth when at high intracellular concentrations