Growth and Nutrition of Bacteria Microaerophilic bacteria are those which require low levels of oxygen for growth (lesser than O2 present in atmosphere) oxygen for activation of enzymes 21 % oxygen for growth None of these low levels of oxygen for growth (lesser than O2 present in atmosphere) oxygen for activation of enzymes 21 % oxygen for growth None of these ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria Organisms, using organic compounds as electron donors are called phototrophs lithotrophs chemotrophs organotrophs phototrophs lithotrophs chemotrophs organotrophs 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 Each growth curve consists of four distinct phases Graphs numbers of microbes versus time Plotted with logarithmic numbers Shows development of microbial population under relatively stable environmental conditions Each growth curve consists of four distinct phases Graphs numbers of microbes versus time Plotted with logarithmic numbers ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria The combination of low levels of NaCl, NaNO3 (sodium nitrate), and slightly acid pH can prevent multiplication and toxin formation of Salmonella all of these S. aureus C. botulinum Salmonella all of these S. aureus C. botulinum ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria Which of the following organisms typically get their carbon for biosynthesis from carbon dioxide? Aerobic, glucose-respiring bacteria (aerobic respiration) Ammonia-oxidizing bacteria (chemolithotrophic bacteria) Anaerobic, glucose-respiring bacteria (anaerobic respiration) Glucose-fermenting bacteria (fermentation) Aerobic, glucose-respiring bacteria (aerobic respiration) Ammonia-oxidizing bacteria (chemolithotrophic bacteria) Anaerobic, glucose-respiring bacteria (anaerobic respiration) Glucose-fermenting bacteria (fermentation) ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria What are the extrinsic factors for the microbial growth? composition of gas phase all of these humidity storage temperature composition of gas phase all of these humidity storage temperature ANSWER DOWNLOAD EXAMIANS APP
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