Top 80+ Solved Bacterial Growth MCQ Questions Answer
Q. The most common mode of cell divisionin bacteria is
a. Binary fission
b. Transverse binary fission
c. Longitudinal binary fission
d. None of these
Q. How much time a bacterium take for thecomplete duplication?
a. 30 min.
b. 10 min.
c. 20 min.
d. 25 min.
Q. The generation time is
a. The time required for the cell to divide
b. The total division of the cell during its life time
c. The total no.of cells formed
d. None of these
Q. In bacteria, the increase in population isin the manner
a. Geometric progression
b. Multiplication
c. Doubling
d. None of these
Q. Physiologically the cells are active and are synthesizing new protoplasm in which stage of the growth in bacteria
a. Log phase
b. Lag phase
c. Stationary phase
d. None of these
Q. The most active stage in the sigmoid curve of bacteria in which maximum growth is attained
a. Lag phase
b. Stationary phase
c. Decline phase
d. Log phase
Q. The no. of generations per hour in a bacteria is
a. Growth rate
b. Generation time
c. Sigmoid curve
d. None of these
Q. The reproduction rate is equal to deathrate in which stage
a. Decline phase
b. Stationary phase
c. Lag phase
d. Log phase
Q. Minimum growth temperature is
a. The growth of organisms at lowest temperature
b. The lowest temperature at which the microorganisms grow
c. The maximum temperature at which the growth is stable
d. None of these
Q. Optimum growth temperature is greaterthat 45oC is
a. Mesophile
b. Thermophiles
c. Psychrophiles
d. None of these
Q. The organisms which can grow both inpresence and absence of oxygen
a. Aerobes
b. Anaerobes
c. Faculative anaerobes
d. Strict aerobes
Q. The organisms which can grow best in the presence of a low concentration of oxygen
a. Aerophilic
b. Microaerophilic
c. Aerobic
d. Anaerobic
Q. The compound that is added to the medium to absorb oxygen for the creation of anaerobic conditions
a. Sodium Thioglycollate
b. Nitrous acid
c. Citrate
d. None of these