TLS Online TPP Program

#Question id: 10825


What are beltian bodies?

#XL - T Zoology
  1. A specialized structure for morphological defence found in certain types of acacia trees
  2. Protein-rich structures found at the tips of leaflets of some types of acacia trees
  3. Specialized structures that prevent anemone fish from being stung by the anemones with which they associate
  4. Modified body structures commonly found in internal parasites but not in external parasites
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TLS Online TPP Program

#Question id: 34203

#XL - S Microbiology

For a bacterial species, the following parameters are known:
μmax=0.9 h−1
Ks=0.1 g/L
Substrate concentration S=0.1 g/L 
Calculate the specific growth rate μ.

TLS Online TPP Program

#Question id: 34204

#XL - S Microbiology

A bacterium has a 𝜇max​  of 1.2 h⁻¹ and exhibits a specific growth rate (𝜇) of 0.8 h⁻¹ when the substrate concentration 𝑆 is 0.4 g/L. Calculate the value of 𝐾𝑠​ .

TLS Online TPP Program

#Question id: 34205

#XL - S Microbiology

A continuous culture is maintained under steady-state conditions in a chemostat where the dilution rate equals the specific growth rate. If the maximum specific growth rate (μmax) of the organism is 0.8 h-1 and the substrate concentration at which the organism grows at this rate is 1.6 g/L, determine the substrate concentration (in g/L) at which the specific growth rate becomes 0.4 h-1. Assume Monod kinetics apply and Ks=0.4 g/L.

TLS Online TPP Program

#Question id: 34206

#XL - S Microbiology

In a chemostat experiment, a microbial species with 𝜇max=1.0 h−1  and 𝐾𝑠=0.2 g/L is maintained at steady-state. If the dilution rate is set to 0.5 h-1, calculate the substrate concentration (S) in the reactor (in g/L), assuming Monod growth.

TLS Online TPP Program

#Question id: 34325

#XL - S Microbiology

Which of the following statements regarding moist heat sterilization are correct?

TLS Online TPP Program

#Question id: 34326

#XL - S Microbiology

Which of the following chemical agents act by disrupting microbial membranes?