Growth and Nutrition of Bacteria Generation time of Escherichia coli is 200 hours 20 minutes 20 days 20 hours 200 hours 20 minutes 20 days 20 hours 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 C. botulinum S. aureus Salmonella all of these C. botulinum S. aureus ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria Which of the following has more tolerance for acidic pH (lower pH)? Bacteria E. coli None of these Yeast and moulds Bacteria E. coli None of these Yeast and moulds ANSWER DOWNLOAD EXAMIANS APP
Growth and Nutrition of Bacteria Which of the following organisms typically get their carbon for biosynthesis from organic compounds? Aerobic, glucose-respiring bacteria (aerobic respiration) None of these Photosynthetic cyanobacteria (phototrophic metabolism) Ammonia-oxidizing bacteria (chemolithotrophic bacteria) Aerobic, glucose-respiring bacteria (aerobic respiration) None of these Photosynthetic cyanobacteria (phototrophic metabolism) Ammonia-oxidizing bacteria (chemolithotrophic bacteria) 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
Growth and Nutrition of Bacteria Which of the following procedures uses a photocell to measure absorbance of a culture to regulate the flow of culture media? Hemostat Trubidostat Coulter Counter Petroff-Hausser chamber Hemostat Trubidostat Coulter Counter Petroff-Hausser chamber ANSWER DOWNLOAD EXAMIANS APP
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