1. The word Archaeobacteria (a division of bacteria) derived from Greek means
True bacteria
False bacteria
Recent bacteria
Ancient bacteria
✅ The correct answer is option D.
Kingdom Monera MCQs
2. Who coined the term Animalcules for microorganisms like Bacteria and protozoa?
Robert Koch
Louis Pasteur
Alexander Fleming
Leeuwenhoek
✅ The correct answer is option D.
3. Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture?
Robert Koch
Louis Pasteur
Alexander Fleming
Leeuwenhoek
✅ The correct answer is option A.
4. Which of the following statement is incorrect regarding the germ theory of diseases postulated by Robert Koch?
A specific organism can always be found in association with a given disease
The organism can be isolated and grown in pure culture in the laboratories
The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from the pure culture can do so.
It is possible to recover the organism in pure culture from the experimentally infected animals.
✅ The correct answer is option C.
5. Which of the following structure is not present in all the bacteria?
Cell membrane
Chromatin bodies
Ribosomes
Capsule
✅ The correct answer is option D.
6. The size of Spirochete is
0.1 -600 um
100-200 nm
500 um
0.75-1.25 um
✅ The correct answer is option C.
7. E. coli and example of Enterobacteriaceae is important for causing diarrheal diseases its size is:
0.1-600 um
100-200 nm
1.1-1.5 um (width) 2.0-6.0 um (length)
0.75-1.25 um
✅ The correct answer is option C.
8. In bacterial categories the bacteria smaller in number are
Gram-ive bacteria
Eubacteria
Ancient bacteria
Gram +ive bacteria
✅ The correct answer is option C.
10. Some bacteria ranging occasionally a size of 500 ?m in length are
Escherichia coli
Spirochetes
Mycoplasma
Epulopiscuim
✅ The correct answer is option B.