We are providing accurate 1st year biology mcqs with answers pdf. Firstly You can read First year biology short questions answers for class 11 chapter wise pdf.
Chapter 6
Kingdom prokarotae (Monera)
Encircle the most appropriate answer from the following options choose one:
1. Which of the following are true bacteria?
- Arhcaeobacteria
- Cyanobacteria
- Eubacteria
- None of the above
2. The first scientist who observed microbes was choose one:
- Leeuwenhoek
- Louis Pasteur
- Robert Koch
- Heckle
3. Vaccine against anthrax was developed by choose one:
- Leeuwenhoek
- Louis Pasteur
- Robert Koch
- Jenner
4. The process of fermentation was discovered by choose one:
- Leeuwenhoek
- Louis Pasture
- Robert Koch
- Heckle
5. Germ theory of diseases was given by choose one:
- Leeuwenhoek
- Louis Pasteur
- Robert Koch
- Heckle
6. The smallest bacterium is choose one:
- E. Coli
- Mycoplasma
- Epulopiscum
- Staphylococci
7. The largest bacterium is choose one:
- E. Coli
- Mycoplasma
- Epulopiscum
- Staphylococci
8. The size of bacterium Escherichia coli is choose one:
- 2.1 to 1.5 um
- 1.1 to 2.5 pm
- 1.1 to 1.5 pm
- 2.1 to 2.5 pm
9. The rode shaped bacteria are choose one:
- Cocci
- Bacilli
- Sprillium
- None of the above
10. The pair of cocci bacteria in which cell division occurs in one plane is called choose one:
- Deplococcus
- Streptrococcus
- Tetrad
- Sacrcina
11. The long chain of cocci bacteria in which cell division occurs in one plane is called choose one:
- Deplococcus
- Streptrococcus
- Tetrad
- Sacrcina
12. The pair of cocci bacteria in which cell division occurs in two plane is called choose one:
- Deplococcus
- Streptrococcus
- Tetrad
- Sacrcina
13. The pair of cocci bacteria in which cell division occurs in three plane is called choose one:
- Deplococcus
- Streptrococcus
- Tetrad
- Sacrcina
14. Which of the following bacteria are cocci?
- E. Coli
- Pseudomonas
- D. Pneumoniae
- B. Subtilis
15. Which of the followings is curved or comma shaped spiral?
- Vibiro
- Spirllium
- Spirochete
- None of the above
16. Which of the following is thick rigid spiral?
- Vibiro
- Spirllium
- Spirochete
- None of the above
17. A bacterium with single polar flagellum is called choose one:
- Atrichous
- Monotrichous
- Lophotrichous
- Amphitrichous
18. A bacterium without flagellum is called choose one:
- Atrichous
- Monotrichous
- Lophotrichous
- Amphitrichous
19. A bacteria in Which flagellum surround it is called choose one:
- Atrichous
- Monotrichous
- Lophotrichous
- Amphitrichous
20. A bacterium in which flagellum surrounds is called choose one:
- Atrichous
- Monotrichous
- Pritrichous
- Amphitrichous
21. The structure used in the conjugation of bacteria are choose one:
- Capsule
- Slime
- Pili
- Mesosome
22. Which of the following structure makes the cell wall sticky?
- Capsule
- Slime
- Pili
- Mesosome
23. The major locomotory organs in bacteria are choose one:
- Cilia
- Slime
- Pili
- Flagella
24. Gram positive cell wall have peptidoglycan choose one:
- 10%
- 20%
- 40%
- 50%
25. Gram negative cell wall have Peptidoglycan choose one:
- 10%
- 20%
- 40%
- 50%
26. The thickness f cell wall of gram negative bacterium is choose one:
- 1-5 nm
- 1-7
- 8-9 nm
- 8-11 nm
27. The enzymes for respiratory metabolism in bacteria are present in choose one:
- Cell wall
- Cell membrane
- Cytoplasmic matrix
- Plasmid
28. The plasma membrane and every thing present in it is called choose one:
- Cytoplasm
- Protoplast
- Nucleoid
- Matrix
29. Nucleoids of bacteria are stained with choose one:
- Crystal violet stain
- Feulgen stain
- Eosin stain
- None of the above
30. The extra nuclear double stranded DNA in bacteria are called choose one:
- Nucleoid
- Chromosome
- Plasmid
- None of the above
31. The ribosome of bacteria are choose one:
- 60S
- 70S
- 80s
- 90S
32. The structure involved in the replication of bacteria are choose one:
- Ribosomes
- Cell membrane
- Plasmid
- Mesosomes
33. The resistant structure developed during reproduction of vegetative cells of bacteria is called choose one:
- Plasmids
- Mesosomes
- Slime
- cysts
34. The bacteria which use decay matter as a food are called choose one:
- Saprophytes
- Parasites
- Saprozooic
- None of the above
35. The photosynthetic bacteria release choose one:
- CO2
- Oxygen
- Sulphur
- None of the above
36. In which phase the growth of bacteria is rapid?
- Lag phase
- Log phase
- Stationary phase
- Decline
37. In which phase the growth of bacteria is equal?
- Lag phase
- Log phase
- Stationary phase
- Decline
38. Which of the following is not sterilization method for controlling bacteria?
- Filtration
- High temperature
- Antiseptics
- Radiation
39. Hormones and serum are sterilized by choose one:
- High temperature
- Low temperature
- Filtration
- Radiation
40. Which of the following antibiotic causes allergic reactions?
- Streptomycin
- Tetracycline
- Penicillin
- None of the above
41. The filaments of cyanobacteria are called choose one:
- Heteroysts
- Trichome
- Hormogonia
- Akintes
42. The barrel shaped cells present in the filaments of cyanobacteria are called choose one:
- Heteroysts
- Trichome
- Hormogonia
- Akintes
43. The fragments of the filament of cyanobacteria are called choose one:
- Heterocysts
- Trichome
- Hormogonia
- Akintes
44. The accessory pigments of the cyanobacteria are called choose one:
- Chlorophyll
- Phycobilins
- Xanthophylls
- Carotene
45. The tick wall reproductive cell of the cyanobacteria are called choose one:
- Heterocysts
- Trichome
- Hormogonia
- Akintes
46. Antone Van leeuwenhoek firstly observed small creatures in rain choose one:
- Water
- Rain water
- Saliva
- Infusion
47. Louis Pasteur did not discovered vaccine against the disease choose one:
- Anthrax
- Fowl cholera
- Foot and mouth disease
- Rabies
48. The aim of the germ plasma theory was choose one:
- To prove symptom of a disease
- To discover the treatment of disease
- To prove the cause of a disease
- To discover vaccine against a disease
49. The smallest bacteria on the earth are choose one:
- Myco plasma
- Escherichia coli
- Staphylococci
- Epulopiscium fishlesoni
50. The largest bacteria on the earth are choose one:
- Mycoplasma
- Escherichia coli
- Staphylococci
- Epulopiscium fishlesoni
51. In some bacteria division occurs in one plane and bacteria are arranged in chain. Such bacteria are called choose one:
- Diplococcus
- Streptococcus
- Tetrad
- Sarcina
52. When division occurs in random planes, it will produce an arrangement called choose one:
- Diplococcus
- Strptococcus
- Tetrad
- Staphylococcus
53. Which of the following is flexible spiral?
- Vibrio
- Spirillum
- Spirochete
- None of the above
54. The condition in which bacteria are without flagella is called choose one:
- Atrichous
- Monotrichous
- Lophotrichous
- Ampitrichous
55. Chemotaxis is phenomenon in which an organism choose one:
- Eat a chemical
- Detect a chemical
- Show response to a chemical
- Change a chemical
56. Tuft of flagella is present only at one pole of bacteria in case of choose one:
- Atrichous
- Monotrichous
- Lophotrichous
- Ampitrichous
57. Which of the following structure is used in sexual reproduction of bacteria?
- Cell wall
- Endospore
- Capsule
- Pili
58. Which of the following is not include in the envelope of the bacteria?
- Capsule
- Slime
- Cell wall
- Cell membrane
59. Arrange the position of cell membrane, cell wall, slime and capsule from outer to inner surface choose one:
- Cell wall — Cell membrane — Slime — Capsule
- Capsule — Slime — Cell wall — Cell membrane
- Slime — Capsule — Cell wall — Cell membrane
- Cell wall — Capsule — Slime — Cell membrane
60. Which of the following are not the characteristics of cell Gram positive cell all?
- It has two major layers
- It is more permeable
- It has outer membrane
- It has lipids I — 4%
61. Which of the following are the characteristics of Gram negative cell wall?
- It has two major layers
- It is more permeable
- It has outer membrane
- It has lipids 1 —4%
62. The cell wall of Archeobactira does not contain choose one:
- Lipids
- Proteins
- Peptidoglycan
- Carbohydrates
63. Which of the following is not the function of membrane?
- It regulate the control of material
- It contains respirat
- It plays role in division of cell
- None of the these
64. Nucleoid is stained with choose one:
- Gram positive Stain
- It contain respiratory enzyme
- Feulgen stain
- None of the above
65. Which of the following contain DNA?
- Slime
- Plasmid
- Ribosome
- Pili
66. Which of the following are chemosynthetic bacteria choose one:
- The bacteria which synthesize food from organic compounds
- The bacteria which synthesize food form inorganic compounds
- The bacteria which release energy from organic compounds
- The bacteria which release energy form the inorganic compounds
67. Which of the bacteria can grow in any condition?
- Aerobic bacteria
- Anaerobic bacteria
- Facultative bacteria
- Microaerophilic bacteria
68. The generation time of bacteria is choose one:
- The interval of time between young and old age of bacteria
- The interval of time until the completion of the next division
- The interval of time between two generations
- The interval of time between two divisions
69. The rapid growth of bacteria occurs in the phase choose one:
- Lag phase
- Log phase
- Stationary Phase
- Decline phase
70. The bacterial growth becomes equal with the death rate in the choose one:
- Lag phase
- Log phase
- Stationary Phase
- Decline phase
71. Sexual reproduction in bacteria takes place by choose one:
- Fusion of gamete
- Fusion of nuclei
- Exchange of nucleic
- Exchange of part of DNA
72. Which of the following bacteria are not used in?
- Food production
- Drug production
- Alcohol production
- Antibiotics production
73. Which of the following methods do not come within the method of sterilization?
- Use of filter paper to filter water
- Boiling of water
- Washing the toilet with phenyl
- Use of rays
74. Which of the following is antiseptics?
- Quinine
- Phenyl
- Dettol
- Sodium bicarbonate
75. Which of following is Disinfectant choose one:
- Quinine
- Phenyl
- Dettol
- Sodium bicarbonate
76. Which of following is Disinfectant choose one:
- Quinine
- Phenyl
- Dettol
- Sodium bicarbonate
77. Which of the following is relevant to vaccine choose one:
- A vaccine is compound which kills germ
- A vaccine is a name of a drug
- A vaccine is synthesized from plants
- A vaccine is drive from the germs
78. Louis Pasteur did not synthesize the vaccine of choose one:
- Chicken cholera
- Anthrax
- Small pox
- Rabies
79. The antibiotic penicillin is not used today because choose one:
- It has become ineffective
- It is too costly to be used by the patients
- It causes allergic reaction
- It is not available in market
80. A person eats a drug and becomes deaf. Which drug he might have eaten?
- Quinine
- Streptomycin
- Penicillin
- Tetracycline
81. The cyanobacteria are also called blue green algae because choose one:
- They have blue green cell wall
- They have blue green chloroplast
- They have blue green pigments
- None of the above
82. Reserved food material in cyanobacteria is choose one:
- Glucose
- Starch
- Lipids
- Glycogen
83. The broken piece of filament of cyanobacteria is called choose one:
- Trichome
- Hormogonia
- Heterocyst
- Akinete
84. The thick walled enlarged reproductive cells are called choose one:
- Trichome
- Hormogonia
- Heterocyst
- Akinete
85. The water bloom is a choose one:
- Water with bad smell
- Water with a layer of organisms
- Water cannot be drunk
- Polluted water
86. Super blue green algae is cyanobacteria which choose one:
- Pollute water
- has nutritional value
- Cause disease in man
- None of the above