Basic Bacterial Growth Objective Type Questions And Answers

41. The reproduction rate is equal to death rate in which stage
a. Decline phase
b. Stationary phase
c. Lag phase
d. Log phase
Ans: D

42. 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
Ans: B

43. Optimum growth temperature is greater that 45oC is
a. Mesophiles
b. Thermophiles
c. Psychrophiles
d. None of these
Ans: A

44. The organisms which can grow both in presence and absence of oxygen
a. Aerobes
b. Anaerobes
c. Faculative anaerobes
d. Strict aerobes
Ans: A

45. The organisms which can grow best in the presence of a low concentration of oxygen
a. Aerophilic
b. Microaerophilic
c. Aerobic
d. Anaerobic
Ans: B

46. 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
Ans: B

47. The utilization of light energy to drive the synthesis of ATP is called as
a. Photolysis
b. Photophosphorylation
c. Photosynthesis
d. Respiration
Ans: C

48. During cyclic phosphorylation NADP is formed or not.
a. No NADP formation
b. No NADP utilization
c. NADP is converted into NADPH
d. All are correct
Ans: A

49. Cyclic phosphorylation is generally present in
a. Cyanobacteria
b. Algae
c. Bacteria
d. Plants
Ans: A

50. Non-cyclic photophosphorylation is also known as
a. Oxygenic photosynthesis
b. Photosynthesis
c. Anoxygenic photosynthesis
d. Photophosphorylation
Ans: B

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