In bacterial categories the bacteria smaller in number are_______________?
(A) Gram-ive bacteria
(B) Eubacteria
(C) Ancient bacteria
(D) Gram +ive bacteria
E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________?
(A) 0.1-600 um
(B) 100-200 nm
(C) 1.1-1.5 um (width) 2.0-6.0 um (length)
(D) 0.75-1.25 um
Which of the following structure is not present in all the bacteria_____________?
(A) Cell membrane
(B) Chromatin bodies
(C) Ribosomes
(D) Capsule
Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________?
(A) A specific organism can always be found in association with a given disease
(B) The organism can be isolated and grown in pure culture in the laboratories
(C) The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.
(D) It is possible to recover the organism in pure culture from the experimentally infected animals
Spirochete is an example of___________?
(A) Aerobic bacteria
(B) Anaerobic bacteria
(C) Facultative bacteria
(D) Microaerophilic
Sex pill is formed in which of the following processes?
(A) Binary fission
(B) Mitosis
(C) Sexual reproduction
(D) Conjugation
Rapid growth at exponential ration occurs in which phase of bacterial growth:
(A) Lag phase
(B) Log phase
(C) Stationary phase
(D) Death / decline phase
Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?
(A) Antiseptics
(B) Disinfectants
(C) Antibiotics
(D) Vaccines
Who developed the vaccine against anthrax?
(A) Louis Pasteur
(B) Edward Jennar
(C) Leuvenhoek
(D) Alexander Fleming