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Microbiology

QuestionAnswer
Lactobacillus (milk) is a form of _____. Acidophil
Acid loving bacteria? acidophil
Bacteria with a Ph. of 5.4 acidophil
Radiation causes? Mutations
radiation affects? nucleic acids
Base loving bacteria such as Vibrio and Cholera? Alkalinophiles
bacteria with a Ph. between 7.0-11.5. alkalinophiles
Neutral loving bacteria with a Ph. between 5.4-8.5. Neutrophils
another word for shrink hypertonic
another word for expand hypotonic
hydrostatic pressure affects? Membranes & enzymes
moisture affects? metabolism
sexual reproduction? conjugation
bacterial reproduction binary fission
y-axis # of cells
x-axis time
exponential growth happens during this phase. log phase
bacteria adjust to the environment during this phase lag phase
4 phases of cell growth. 1.lag 2.log 3.stationary 4.death/decline
reproduction=death stationary phase
exponential decline occurs during this phase death/decline phase
Ph. affects? Cell wall
temperature affects? enzymes
what cells produce to become resistant to antibiotics. (during conjugation) plasma
cold loving bacteria are called? psycrophiles
psycrophiles like what temperature? 15-20 degrees C.
mesophiles like what temperature? 25-45 degrees C.
heat loving bacteria are called? thermophiles
thermophiles like what temperature? 50-60 degrees C
what does aerobic mean? needs oxygen
what does anaerobic mean? dislikes oxygen
if a bacteria is obligate aerobic, then_____ it cant live with out oxygen
if a bacteria is facultative aerobic then_____ it prefers to have oxygen, but can live with out it
if a bacteria is obligate anaerobic then____ then it cant live with oxygen
if a bacteria is facultative anaerobic then____ it prefers to live without oxygen, but can live with it
encourages growth of some organisms but not others selective medium
changes bacteria, IE: color, Ph. etc. differential medium
special nutrients that allow the growth of a particular organism be in sufficient numbers enrichment medium
streak plate flame, streak, flame, streak, flame, streak, flame streak
Created by: lbclark1510