Free & Premium Study Material · Online Courses · Instant Download+91 99398 78821 · support@downloadstore.in
downloadstoreSTUDY MATERIAL
LoginRegister🛒0

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

147 MCQ questions with answers and explanations · page 2 of 6

Test yourself▶ 25 question test▶ 50 question test

Q26. Bacteria which cause food poisoning -

  1. AClostridium tetani
  2. BSalmonella typhosa
  3. CBacillus anthriacis
  4. DClostridium botulinum
Show answer & explanation

Answer: A) Clostridium tetani

Q27. Consider the following kinds of organisms : 1. Algae 2.Fungi 3. Protozoa ln which of the above are unicellular organisms found ?

  1. A1 only
  2. B2 and 3 only
  3. C1 and 3 only
  4. D1, 2 and 3
Show answer & explanation

Answer: D) 1, 2 and 3

Q28. Which of the following is a free living bacteria that help in nitrogen fixation ?

  1. AAzotobacter
  2. BAnabaena
  3. CAzolla
  4. DNostoc
Show answer & explanation

Answer: D) Nostoc

Q29. Micro organism include -

  1. ABacteria & Virus
  2. BBacteria, Virus, Microalgae and Fungi
  3. CBacteria, Virus, Microalgae, Fungi and Protozoa
  4. DAll animals & Plants
Show answer & explanation

Answer: A) Bacteria & Virus

Q30. Which one of the following type of micro organism is most widely used in industires ?

  1. ABacteria
  2. BBacteria and fungi
  3. CBacteria and algae
  4. DBacteria, microalgae and fungi
Show answer & explanation

Answer: C) Bacteria and algae

Q31. What is mushroom ?

  1. AFungus
  2. BPlant
  3. CAnimal
  4. DBacteria
Show answer & explanation

Answer: D) Bacteria

Q32. The most extensive use of molasses after fermentation is for producing -

  1. AMethanol
  2. BSugar
  3. CEthanol
  4. DSugarcane
Show answer & explanation

Answer: A) Methanol

Q33. A bacterial cell divides once every minute and take one hour to fill a cup. How much time will take it to fill half the cup ?

  1. A30 minutes
  2. B60 minutes
  3. C29 minutes
  4. D59 minutes
Show answer & explanation

Answer: C) 29 minutes

Q34. Which of the following is / are the possible commercial/ industrial applications of bacteria ? 1. Fermentation of sugars 2. Production of vaccines 3. Cleaning of oil spills Select the correct answer using the code given below :

  1. A1 only
  2. B1 and 3 only
  3. C1 and 3 only
  4. D1, 2 and 3
Show answer & explanation

Answer: D) 1, 2 and 3

Q35. Nitrogen fixing bacteria is useful in growing which crop -

  1. AWheat
  2. BPaddy
  3. CLegume
  4. DMaize
Show answer & explanation

Answer: D) Maize

Q36. Function of Leghaemoglobin in nitrogen fixation -

  1. AAbsorption of oxygen
  2. BNutrion of bacteria
  3. CAbsorption of light
  4. DAll
Show answer & explanation

Answer: C) Absorption of light

Q37. Which one of the following disease caused by bacteria ?

  1. ATuberculosis
  2. BMumps
  3. CSmall Pox
  4. DRabies
Show answer & explanation

Answer: A) Tuberculosis

Q38. Which communicable disease is caused by bacteria ?

  1. ASmall pox
  2. BMumps
  3. CLeprosy
  4. DAsthma
Show answer & explanation

Answer: A) Small pox

Q39. Refrigeration is a process in which -

  1. ABacteria are destroyed
  2. BGrowth of bacteria reduced
  3. CBacteria become inactive
  4. DCytoplasm of bacteria contract
Show answer & explanation

Answer: C) Bacteria become inactive

Q40. Souring of milk is due to -

  1. AProtozoa
  2. BBacteria
  3. CVirus
  4. DNematode
Show answer & explanation

Answer: B) Bacteria

Q41. Bacteria helpful in making curd from milk -

  1. AMycobacterium
  2. BStaphylococcus
  3. CLactobacillus
  4. DYeast
Show answer & explanation

Answer: C) Lactobacillus

Q42. Nitrogen fixing bacteria found in leguminous plant -

  1. AAzotobacter
  2. BNitrobacter
  3. CRhizobium
  4. DPseudomonas
Show answer & explanation

Answer: C) Rhizobium

Q43. Virus is said to be -

  1. ALiving
  2. BNonliving
  3. CTransitional group between living and nonliving
  4. DLiving that cannot be multiply
Show answer & explanation

Answer: C) Transitional group between living and nonliving

Q44. TMV is related to-

  1. AVirus
  2. BEvolution
  3. CAlgae
  4. DReproduction of
Show answer & explanation

Answer: A) Virus

Q45. The disease hydrophobia is caused due to -

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

Answer: C) Virus

Q46. Which one of following contain no enzyme ?

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

Answer: B) Virus

Q47. The virus which attack the bacterial cell are called -

  1. ATobacco mosaic virus
  2. BCyanophage
  3. CBacteriophage
  4. DMycophages
Show answer & explanation

Answer: C) Bacteriophage

Q48. Consider the following - 1. Nucleic acid 2. Carbohydrate 3. Protein A virus is made up of which of the following ?

  1. A1 and 2 only
  2. B2 and 3 only
  3. C1 and 3 only
  4. D1, 2 and 3 only
Show answer & explanation

Answer: C) 1 and 3 only

Q49. HIV often changes its shape due to the presence of an enzyme is called

  1. AReverse Transcriptase
  2. BEnterokinase
  3. CNucleotidase
  4. DNucleotidtase
Show answer & explanation

Answer: A) Reverse Transcriptase

Q50. Virus which contain RNA as genetic material -

  1. AReovirus
  2. BReterovirus
  3. CRibo virus
  4. DAll
Show answer & explanation

Answer: D) All

1234…6
← Kingdom Plantae MCQMorphology of Plant MCQ →
💬