Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 61 of 150)

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
Spirochete is an example of___________?
A. Aerobic bacteria
B. Anaerobic bacteria
C. Facultative bacteria
D. Microaerophilic
E. coli and example of____________?
A. Aerobic bacteria
B. Anaerobic bacteria
C. Facultative bacteria
D. Microaerophilic
Nitrifying bacteria are the examples of___________?
A. Hetrotrophic bacteria
B. Chemosynthetic bacteria
C. Saprophytic bacteria
D. Parasitic bacteria
Those bacteria which are fully dependent upon their host for nutrition are called__________?
A. Heterotrophic bacteria
B. Chemosynthetic bacteria
C. Saprophytic bacteria
D. Parasitic bacteria
Purple non-sulphur bacteria is an example of___________?
A. Heterotrophic bacteria
B. Chemosynthetic bacteria
C. Photosynthetic bacteria
D. Saprotrophic bacteria