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Botany MCQS[NEET-2021 to 2022]-Kingdom Monera
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1. How many of the following species of bacteria cause diseases in humans?
50
100
150
200
2. Cyanobacteria reproduce by which of the following?
Binary fission
Multiple fission
Mitosis
meosis
3. Locomotion of cyanobacteria is possible because of
Gas vesicles
Flagella
Cell Membrane
More than one option is correct
4. Cyanobacteria have
Gram +ve cell wall
Gram -ve cell wall
Both
None
5. Who among the following Scientist developed the vaccine against anthrax?
Edward Jennar
Robert Brown
Louis Pasteur
A and B
6. Which of the following Chemical substances inhibit the growth of micro organism?
Antiseptic
Antibiotic
Anti Aging serum
A and B
7. Rapid growth at exponential ration occurs in which of the following phase of bacterial growth?
Log phase
Lag phase
Death phase
stationary phase
8. Sex pili is formed in
Binary fission
multiple fission
Mitosis
None
9. E. coli and example of
Aerobic Bacteria
Anaerobic Bacteria
Facultative Bacteria
None
10. Cell wall is absent in
Mycoplasma
Plant cell
Bacilli
mycobacterium
11. Cell wass of Archaeobacteria does not contain
Proteins
Peptidoglycan
Glycoproteins
None
12. Appearance of gram positive bacteria?
Red
Green
Purple
Whitish yellow
13. Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called
Chromosomes
Nucleus
Chromatin body
A and C
14. Which of the following contains genes for drug and disease resistance in bacteria?
Plasmid
Necleotide
Mesosome
None
15. Which of the following is the waste material in bacteria ?
Lactic acid
Glycogen
Urea
Ammonia
16. Example of bacteria requiring low concentration of oxygen is
Campylobactor
spirocheta
E-coli
Pseudomonas
17. Purple non-sulphur bacteria is an example of
Heterotrophic bacteria
Chemosynthetic bacteria
Saprotrophic bacteria
Photosynthetic bacteria
18. Those bacteria which are fully dependent upon their host for nutrition are called
Heterotrophic bacteria
Chemosynthetic bacteria
Saprophytic bacteria
Parasitic bacteria
19. Nitrifying bacteria are the examples of
Hetrotrophic bacteria
Chemosynthetic bacteria
Parasitic bacteria
Saprophytic bacteria
20. Coccobacillus has a shape similar to
Diplobacillus
Sarcina
Egg
None of these
21. The first bacterium isolated was
Coccus
Bacillus
Vibrio
Spirochete
22. Which of the following bacteria are thick rigid and spiral
Vibrio
Spirillum
Spirochete
Coccus
23. A group of 8 cocci is called
Diplococci
Octococci
Tetrad
Sarcina
24. Which of the following has a chain arrangement?
Streptobacillus
Streptococci
Staphylococci
A and B
25. Which of the following bacteria do not have flagella commonly?
Cocci
Bacilli
Streptobacilli
Vibrio
26. Flagella originate from
Cell membrane
Cell wall
Capsule
Basal body
27. A bacterium with tuft of flagella at both poles is called
Lophotrichus
Monotrichous
Peritrichous
Amphitrichous
28. Which of the following structure primarily helps in attachment of bacteria on various surfaces?
Flagella
Pili
Both of these
None of these
29. Which of the following structure provides greater pathogenicity to the bacteria?
Capsule
Slime
Cell Wall
Cell membrane
30. The word Archaeobacteria (a division of bacteria) derived from Greek mean
True bacteria
False bacteria
Recent bacteria
Ancient bacteria
31. Who coined the term Animalcules for microorganisms like Bacteria and protozoa?
Robert Koch
Louis Pasteur
Leeuwenhoek
Alexander Fleming
32. 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
33. Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch?
A specific organism can always be found in association with a given
The organism can be isolated and grown in pure culture in the laboratories
It is possible to recover the organism in pure culture from the experimentally infected animals.
The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.
34. Which of the following structure is not present in all the bacteria?
Cell membrane
Chromatin bodies
Capsule
Ribosomes
35. The size of Spirochete is
0.1 -600 um
100-200 nm
0.75-1.25 um
500 um
36. E. coli and example of entrobacteriace 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
37. In bacterial categories the bacteria smaller in number are
Gram-ive bacteria
Ancient bacteria
Eubacteria
Gram +ive bacteria
38. Germ theory of disease has postulates
3
5
4
6
39. Some bacteria ranging occasionally a size of 500 ?m in length are
Escherichia coli
Spirochetes
Epulopiscuim
Mycoplasma
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