Microorganisms Friend and Foe MCQs | Microorganisms Friend and Foe Multiple Choice Questions and Answers

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Questions
1 Name the Living organism which we cannot seen by naked eye.
A Microorganisms
B Lyophobic organisms
C Chromic organisms
D Fermentation

Answer: Microorganisms
2 Name the microorganisms which require host cells to reproduce and complete their life cycle.
A Virus
B Fungi
C Bacteria
D Algae

Answer: Virus
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3 Penicillium and Aspergillus are examples of __________
A Fungi
B Bacteria
C Algae
D None

Answer: Fungi
4 The yeast multiply by a process called
A Budding
B Spore formation
C Binary fission
D None of these

Answer: Budding
5 The following is an antibiotics
A Sodium bicarbonate
B Streptomycin
C Alcohol
D Yeast

Answer: Streptomycin
6 The algae commonly used as fertilizers are called
A Blue green algae
B Diatoms
C Staphylococcus
D None of these

Answer: Blue green algae
7 The bread dough rises because of
A Heat
B Growth of yeast cells
C Kneading
D None of these

Answer: Growth of yeast cells
8 The vaccine for smallpox was discovered by
A Edward Jenner
B Sir Ronald Ross
C Robert Koch
D None of these

Answer: Edward Jenner
9 The bacterium which promote the formation of curd
A Breadmould
B Lactobacillus
C Rhizobium
D Spirogyra

Answer: Lactobacillus
10 The bacterium Bacillus Anthracis was discovered by
A Louis Pasteur
B Edward Jenner
C Robert Koch
D None of these

Answer: Robert Koch
11 Carrier of malaria causing protozoan is
A Female Anopheles Mosquito
B Cockroach
C Butterfly
D Housefly

Answer: Female Anopheles Mosquito
12 The process of conversion of sugar into alcohol is called
A Fermentation
B Nitrogen fixation
C Infection
D None of above

Answer: Fermentation
13 Which of the following is not a fungi
A Bread mould
B Penicillium
C Aspergillus
D Paramecium

Answer: Paramecium
14 Which of the following reproduces only inside a host cell?
A Virus
B Bacteria
C Fungus
D Amoeba

Answer: Virus
15 The two micro-organisms which live in symbiotic association in lichens are
A alga and fungus
B fungus and protozoa
C bacteria and protozoa
D alga and bacteria

Answer: alga and fungus
16 The disease caused by a protozoan and spread by an insect is _________.
A Malaria
B Measles
C Dengue
D Polio

Answer: Malaria
17 Paheli dug two pits, A and B, in her garden. In pit A, she put a polythene bag packed with some agricultural waste. In pit B, she dumped the same kind of waste but without packing it in a polythene bag. She, then covered both the pits with soil. What did she observe after a month?
A Waste in pit B degraded faster than that in pit A
B Waste in pit A degraded faster than that in pit B
C Waste in both pits degraded almost equally
D Waste in both pits did not degrade at all

Answer: Waste in pit B degraded faster than that in pit A
18 Name the single celled microorganism which found in glacier to deserts and hot spring.
A Bacteria
B Virus
C Algae
D None

Answer: Bacteria
19 Name the multicellular, heterotrophic microorganisms which found in colonies.
A Fungi
B Algae
C Bacteria
D Virus

Answer: Fungi
20 Name the unicellular or multicellular autotrophic microorganism.
A Protozoa
B Fungi
C Algae
D None of these

Answer: Algae
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