Top 1000+ Solved Microbiology MCQ Questions Answer
Q. Phosphorous is an essential componentof
a. Nucleotides
b. Nucleic acids
c. Phospholipids and Heichoic acids
d. All the above
Q. Trace elements are
a. Zn+2, Cu+2, Mn+2
b. MO6+, Ni2+, B3+ and CO2+
c. Both a and b
d. None of these
Q. The vitamin required for Lactobacillusspecies is
a. Riboflavin
b. Niacin
c. Pyridoxine
d. Folic acid
Q. Vitamin K is necessary for the species
a. Lactobacillus spp.
b. Bacillus anthracis
c. Bacteroides melaninogenicus
d. All of these
Q. The bacteria which are able to grow at 0°C but which grow at 20°C to 30°C, are known as
a. Psychrophiles
b. Facultative psychrophiles
c. Average psychrophiles
d. Mesophiles
Q. The orderly increase in the quantity of allthe cellular components is known as
a. Reproduction
b. Growth
c. Binary fission
d. None of these
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