Scholarship Examination ICCB 08 (14 June 2025)

Another name for Idiophase is

• Log phase

• Lag Phase

• Stationary Phase

• Decline Phase

Which of the following is NOT a contribution of Louis Pasteur in Fermentation

• Identification of compounds that cause milk to sour

• He presented evidence that all fermentation is caused by microorganisms

• He fermented barley and made beer

• He found that specific microorganisms cause specific kinds of fermentation

Who is called as the father of fermentation?

• Edward Jenner

• Antonie van Leeuwenhoek

• Marjory Stephenson

• None of the above

A doctor receives a pathogen sample which she believes to be M. tuberculosis (doubling time 13 hours in culture). She cultures the sample, finding that it grows from 0.2x10^5 cells/ml to 8 x 10^6 cells/ ml in 24 hours. Assuming that the culture was growing exponentially, is the sample likely to be M. tuberculosis? (Provide explanation for your answer)

Which of the following is NOT true about Microbes?

• Most of the microbial cells have a rigid cell wall

• All microorganisms in the soil can be cultured in laboratory

• Some microorganisms are prokaryotes

• Some microorganisms can survive at high temperatures

Which of the following is TRUE about mammalian cells?

• They cannot be cultured in laboratory

• They need non-essential amino acids in the media 

• They require CO2 for respiration

• They have a rigid cell wall

Which of the following tests is NOT used for validation of Laminar Air Flow Chamber?

• Air Velocity and Uniformity Testing

• Endotoxin Detection Test

• Particulate Count Test

• Settle Plate Test

Which one of the following is NOT used for the measurement of cell viability in animal cell culture?

• Trypan blue dye exclusion

• Coulter Counter

• Tetrazolium (MTT) assay

• LDH activity in the culture medium

Which of the following is considered as the most basic level of safety?

• BSL-1

• BSL-2

• BSL-3

• BSL-4

What is the correct statement for the term bioburden?

• The number of microorganisms present in the environment

• The bacterial spores present on the surface after the sterilization of the surface

• The aseptic process for the maintenance of the sterility of the surface

• The process of elimination of microorganisms by using physical agents