A. Lag
B. Exponential growth
C. Stationary phase
D. Decline
Related Mcqs:
- Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?
A. Capsule
B. Flagella
C. Pili
D. Mesosomes - For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________?
A. Lag phase
B. Death phase
C. Stationary phase
D. Logarithmic phase - Bacterial spores are destroyed by_______________?
A. Boiling at 100°C
B. Disinfection by hypochlorite solution
C. Autoclave
D. Pasteurisation - Bacterial cell does not possess___________________?
A. dna
B. Ribosome
C. Mitochondria
D. Cell wall - The structure in involved in bacterial attachment to cell surface is_______________?
A. Capsule
B. Fimbria
C. Flagella
D. None of the above - Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?
A. Cocci
B. Spirochetes
C. Bacteriophages
D. Filamentous rods - The following are applicable to bacterial genoms except________________?
A. It is composed of DNA
B. It doe not contain histones
C. It is circular
D. Its DNA has both introns and extrons - Subacute bacterial endocarditis is caused by_____________?
A. Streptococcus viridans
B. Haemolytic streptococci
C. Staphylococcus aureus
D. Nisseria - Bacterial species which is protective or beneficial to the host is_______________?
A. Streptococcus sanguis
B. Porphyromonas gingivalis
C. Treponema denticola
D. Spirochetes - The viral action is differentiated from bacterial action by_________________?
A. Interferon production
B. Toxin production
C. Lymphocytes production
D. Neutrophils production
