Microorganisms Friend and Foe Objective Type Questions and Answers

Questions

21 Lactobacillus is an example of ___________

A Bacteria

B Virus

C Algae

D None of these

View Answer

Answer: Bacteria

22 Amoeba and paramecium are examples of ____________

A Protozoa

B Fungi

C Bacteria

D Algae

View Answer

Answer: Protozoa

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23 Spirogyra and chlamydomonas are examples of ___________

A Fungi

B Bacteria

C Algae

D None

View Answer

Answer: Algae

24 The example of protozoan is

A Amoeba

B Penicillium

C Blue green algae

D None of these

View Answer

Answer: Amoeba

25 The most common carrier of communicable diseases is

A Housefly

B Spider

C Ant

D Dragonfly

View Answer

Answer: Housefly

26 Yeast produces alcohol and carbon dioxide by a process called

A Fermentation

B Digestion

C Evaporation

D None of these

View Answer

Answer: Fermentation

27 Cholera is caused by

A Virus

B Protozoa

C Bacteria

D None of these

View Answer

Answer: Bacteria

28 Foot and mouth disease of cattle is caused by

A Virus

B Algae

C Fungi

D None of these

View Answer

Answer: Virus

29 Plasmodium is a human parasite which causes

A Malaria

B Sleeping sickness

C dysentery

D All of the above

View Answer

Answer: Malaria

30 Chickenpox is caused by

A Protozoa

B Fungi

C Virus

D None of these

View Answer

Answer: Virus

31 Yeast is used in the production of

A Alcohol

B Sugar

C Oxygen

D Hydrochloric acid

View Answer

Answer: Alcohol

32 Carrier of dengue virus is

A Female Aedes Mosquito

B Dragon fly

C House fly

D None of above

View Answer

Answer: Female Aedes Mosquito

33 Plant disease citrus canker is caused by

A Bacteria

B Fungi

C Virus

D None of these

View Answer

Answer: Bacteria

34 Name the unicellular or multicellular microorganism which is found in water.

A Protozoa

B Bacteria

C Fungus

D Amoeba

View Answer

Answer: Protozoa

15 The gas released during the preparation of bread is

A carbon dioxide

B nitrogen

C oxygen

D sulphur dioxide

View Answer

Answer: carbon dioxide

36 A disease in human beings caused by virus is _______.

A Influenza

B Cholera

C Typhoid

D Polio

View Answer

Answer: Influenza

37 Pathogenic micro-organisms present in host cells are killed by medicines called

A Antibiotics

B Antibodies

C Pain Killer

D Vaccines

View Answer

Answer: Antibiotics

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