Growth and Nutrition of Bacteria A synergistic effect is observed when microbial alteration of pH, aw, Eh favours the growth of another one organism removes an inhibitory substance for another All of these one organism produces a growth factor utilized by another microbial alteration of pH, aw, Eh favours the growth of another one organism removes an inhibitory substance for another All of these one organism produces a growth factor utilized by another ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria The equation used to obtain bacterial population by binary fission is All of these log N/No = (0.3010) n N = No2n log(N/No) = nlog 2 All of these log N/No = (0.3010) n N = No2n log(N/No) = nlog 2 ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria Which of the following organisms typically get their carbon for biosynthesis from organic compounds? Photosynthetic cyanobacteria (phototrophic metabolism) Ammonia-oxidizing bacteria (chemolithotrophic bacteria) None of these Aerobic, glucose-respiring bacteria (aerobic respiration) Photosynthetic cyanobacteria (phototrophic metabolism) Ammonia-oxidizing bacteria (chemolithotrophic bacteria) None of these Aerobic, glucose-respiring bacteria (aerobic respiration) ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria The ability of Vibrio fischeri to produce bioluminescence chemicals only when a certain population density has been reached is an example of Heisenberg's principle of uncertainty quorum sensing Shelford's law of tolerance Liebig's law of the minimum Heisenberg's principle of uncertainty quorum sensing Shelford's law of tolerance Liebig's law of the minimum ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is alkalophile aerotolerant anaerobe acidophile osmotolerant alkalophile aerotolerant anaerobe acidophile osmotolerant ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria Which of the following is not the characteristic of a growth curve? Shows development of microbial population under relatively stable environmental conditions Plotted with logarithmic numbers Each growth curve consists of four distinct phases Graphs numbers of microbes versus time Shows development of microbial population under relatively stable environmental conditions Plotted with logarithmic numbers Each growth curve consists of four distinct phases Graphs numbers of microbes versus time ANSWER DOWNLOAD EXAMIANS APP
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