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TLS Online TPP Program

#Question id: 18472

Which of the following is not a method of the perpetuation of disease by the pathogen?

#XL - R Botany
  1. The entry of pathogen through natural openings
  2. Reproduction by pathogen
  3. Reducing the quantity of yield
  4. Direct penetration of the pathogen
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TLS Online TPP Program

#Question id: 34195

#XL - S Microbiology

Which of the following are features of the stationary phase in a microbial growth curve?
TLS Online TPP Program

#Question id: 34196

#XL - S Microbiology

Which of the following are reasons for the onset of the death phase?
TLS Online TPP Program

#Question id: 34197

#XL - S Microbiology

In a typical batch culture growth curve, which of the following can be used to monitor bacterial population over time?
TLS Online TPP Program

#Question id: 34198

#XL - S Microbiology

A bacterial culture has an initial population of 2 × 106 cells. After 3 hours of exponential growth, the population becomes 1.6 × 107 cells. Calculate the number of generations (n) that have occurred in this time.
TLS Online TPP Program

#Question id: 34199

#XL - S Microbiology

A culture has a specific growth rate (μ) of 0.693 h-1. Calculate the doubling time (g) in minutes.
TLS Online TPP Program

#Question id: 34200

#XL - S Microbiology

A culture has a cell concentration of 1 × 109 cells/mL and a biomass yield coefficient (Yx/s) of 0.5 g biomass/g substrate. If 2 grams of substrate are consumed, calculate the biomass produced (in grams).