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Free download in PDF Microorganisms Friend and Foe Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(21)
Lactobacillus is an example of ___________
[A]
Bacteria
[B]
Virus
[C]
Algae
[D]
None of these
(22)
Amoeba and paramecium are examples of ____________
[A]
Protozoa
[B]
Fungi
[C]
Bacteria
[D]
Algae
(23)
Spirogyra and chlamydomonas are examples of ___________
[A]
Fungi
[B]
Bacteria
[C]
Algae
[D]
None
(24)
The example of protozoan is
[A]
Amoeba
[B]
Penicillium
[C]
Blue green algae
[D]
None of these
(25)
The most common carrier of communicable diseases is
[A]
Housefly
[B]
Spider
[C]
Ant
[D]
Dragonfly
(26)
Yeast produces alcohol and carbon dioxide by a process called
[A]
Fermentation
[B]
Digestion
[C]
Evaporation
[D]
None of these
(27)
Cholera is caused by
[A]
Virus
[B]
Protozoa
[C]
Bacteria
[D]
None of these
(28)
Foot and mouth disease of cattle is caused by
[A]
Virus
[B]
Algae
[C]
Fungi
[D]
None of these
(29)
Plasmodium is a human parasite which causes
[A]
Malaria
[B]
Sleeping sickness
[C]
dysentery
[D]
All of the above
(30)
Chickenpox is caused by
[A]
Protozoa
[B]
Fungi
[C]
Virus
[D]
None of these
31
Yeast is used in the production of
[A]
Alcohol
[B]
Sugar
[C]
Oxygen
[D]
Hydrochloric acid
32
Carrier of dengue virus is
[A]
Female Aedes Mosquito
[B]
Dragon fly
[C]
House fly
[D]
None of above
Answer: Female Aedes Mosquito
33
Plant disease citrus canker is caused by
[A]
Bacteria
[B]
Fungi
[C]
Virus
[D]
None of these
34
Name the unicellular or multicellular microorganism which is found in water.
[A]
Protozoa
[B]
Bacteria
[C]
Fungus
[D]
Amoeba
(15)
The gas released during the preparation of bread is
[A]
carbon dioxide
[B]
nitrogen
[C]
oxygen
[D]
sulphur dioxide
36
A disease in human beings caused by virus is _______.
[A]
Influenza
[B]
Cholera
[C]
Typhoid
[D]
Polio
37
Pathogenic micro-organisms present in host cells are killed by medicines called
[A]
Antibiotics
[B]
Antibodies
[C]
Pain Killer
[D]
Vaccines
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