Microbial Growth and Culturing

organism that grows in acidic (low pH of usually 2 or below) conditions

organism that thrives in the absence of oxygen but is not harmed by the presence of oxygen

mixture of two sugars that produces a gelatin-like surface and provides a base for a variety of different growth media

organism that grows in basic (high pH of usually 8.5–11) conditions

microbe that lives in conditions of high hydrostatic pressure

process by which cells divide asexually

type of cell division in which the daughter cell develops from a bud growing off the mother cell

visible mass of microbes originating from the replication of a single microbe

each viable microorganism in a sample that is capable of enough replication to form a visible colony

media containing ingredients that allow for distinguishing bacteria with a visual cue

toughened, condensed form of cell that can withstand harsh environmental conditions and is formed completely within the bacterial cell and is released when the cell dies

spore that begins to form within the bacterial cell and the final encapsulation step occurs by budding

describes an organism that is able to tolerate an environment with or without specific properties

organism capable of aerobic and anaerobic respiration

amount of time it takes for a population to double in size

pressure a fluid exerts on points below its surface

substance containing nutrients that support the growth of cells

organism that grows at temperatures between 20°C and 45°C

organism that requires oxygen but can only survive in low-oxygen conditions

organism that grows in neutral pH (between 6.5–7.5) conditions

describes an organism that has a strict requirement for specific factors in order to survive

organism that requires oxygen for survival

organism that dies in the presence of oxygen

microbe sample that is mixed with the liquid agar before pouring the plate

organism that grows best at temperatures below 20°C

media designed to support the growth of specific microbes while preventing others from growing

stepwise reduction of a culture population into increasing proportions of a solution

formation of spores

microbe sample that is placed in contact with the solid agar surface

organism that grows best between 50°C and 60°C and can grow at hot temperatures of up to 120°C