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Micro Organism (Virus, Bacteria, Algae, Fungi) MCQ

147 MCQ questions with answers and explanations · page 3 of 6

Test yourself▶ 25 question test▶ 50 question test

Q51. The water of Holy Ganges river is pure due to presence of -

  1. ACyanophages
  2. BHydrophytes
  3. CBacteria
  4. DBacteriophages
Show answer & explanation

Answer: D) Bacteriophages

Q52. The fact that support the concept that viruses are living is that they -

  1. AMultiply themselves
  2. BMade up of common chemical
  3. CCause disease
  4. DCan pass through cell membrane
Show answer & explanation

Answer: A) Multiply themselves

Q53. The bacillus heamophilus influenza causes -

  1. AWhooping Cough
  2. BA form of meningitis in young children
  3. CPneumonia
  4. Dlnfluenza
Show answer & explanation

Answer: D) lnfluenza

Q54. Consider the following statements with regard to chromosome of bacteria : 1. Bacteria always have a single chromosome. 2. Bacterial chromosome is circular . Which of the statements given above is / are correct ?

  1. A1 only
  2. B2 only
  3. CBoth 1 and 2
  4. DNeither 1 nor 2
Show answer & explanation

Answer: C) Both 1 and 2

Q55. Viruses are parasitic, having DNA/RNA but they can be crystallized and lack respiration. Thus they are treated as

  1. ALiving materials
  2. BNon-living materials
  3. CBoth living and non-living materials
  4. DCellulose
Show answer & explanation

Answer: C) Both living and non-living materials

Q56. 'Nonliving' character of Virus :

  1. Alt can be crystalized for many year
  2. Blt grow in living cell
  3. Clt show mutation
  4. DNone of these
Show answer & explanation

Answer: A) lt can be crystalized for many year

Q57. The disease AIDS is caused by -

  1. ABacteria
  2. BFungi
  3. CVirus
  4. DProtozoan
Show answer & explanation

Answer: C) Virus

Q58. HIV is related to-

  1. ACancer
  2. BPlague
  3. CHepetities
  4. DAIDS
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Answer: D) AIDS

Q59. The casual organism of Polio is :

  1. AA worm
  2. BA bacteria
  3. CA fungi
  4. DA virus
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Answer: D) A virus

Q60. Which of the Following symbiotic association forms a lichen ?

  1. AAn algae and a fungus
  2. BAn algae and a bryophyte
  3. CA bacterium and a fungus
  4. DA bacterium and a gymnosperm
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Answer: A) An algae and a fungus

Q61. HIV Virus destroy-

  1. ARBC
  2. BT-4 Lymphocytes
  3. CNeuron
  4. DNone of these
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Answer: B) T-4 Lymphocytes

Q62. Disease caused by HIV -

  1. ATuberculosis
  2. BCancer
  3. CAcquired immune deficiency syndrome
  4. DNone of these
Show answer & explanation

Answer: C) Acquired immune deficiency syndrome

Q63. AIDS virus contain -

  1. ASingle stranded RNA
  2. BDouble stranded RNA
  3. CSingle stranded DNA
  4. DDouble stranded DNA
Show answer & explanation

Answer: A) Single stranded RNA

Q64. The disease AIDS spread-

  1. ABy insects
  2. BBy breathing
  3. CBy sexual contact
  4. DNone of these
Show answer & explanation

Answer: C) By sexual contact

Q65. Viruses are made up of -

  1. AProtein & lipids
  2. BNucleic acid & protein
  3. CLipids & Carbohydrate
  4. DCarbohydrate & Nucleic acid
Show answer & explanation

Answer: B) Nucleic acid & protein

Q66. What is SARS -

  1. AAn organisation
  2. BA disease caused by virus
  3. CA disease caused by bacteria
  4. DCarbohydrate & Nucleic acid
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Answer: B) A disease caused by virus

Q67. lnfectious disease small pox is caused due to-

  1. AVirus
  2. BBacteria
  3. CFungi
  4. DAlgae
Show answer & explanation

Answer: A) Virus

Q68. ln the context of the spread of germs by faecal matter, which of the following does NOT figure in the F-Diagram ?

  1. AFingers
  2. BFluids
  3. CFlies
  4. DFungi
Show answer & explanation

Answer: D) Fungi

Q69. Foot and mouth disease in animal is caused by -

  1. ABacteria
  2. BVirus
  3. CFungi
  4. DAlgae
Show answer & explanation

Answer: B) Virus

Q70. Mosaic disease of tobacco is caused due to -

  1. AVirus
  2. BBacteria
  3. CFungi
  4. DAlgae
Show answer & explanation

Answer: A) Virus

Q71. Anthrax is caused by -

  1. AVirus
  2. BBacteria
  3. CMycoplasm
  4. DAlgae
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Answer: B) Bacteria

Q72. Amoeda acquires its food through the proceed of :

  1. AEndocytosis
  2. BPlasmolysis
  3. CExocytosis and endocytosis
  4. DExocytosis
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Answer: A) Endocytosis

Q73. The bacteria which convert nitrites to nitrates is -

  1. ANitrosococcus
  2. BNitrosomonas
  3. CNitrobacter
  4. DAzotobacter
Show answer & explanation

Answer: C) Nitrobacter

Q74. Archaebacteria are -

  1. AEarliest Known organisms
  2. BAll halophytes
  3. CAll chemotrophs
  4. DAll fossils ferms
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Answer: A) Earliest Known organisms

Q75. Bacteria do not possess-

  1. APlasma membrane
  2. BCell wall
  3. CMitochondria
  4. DRibosomes
Show answer & explanation

Answer: C) Mitochondria

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