Microbes in Human Welfare: MCQs Quiz – 2 2


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MCQs (Multiple Choice Questions) in Quiz Format on “Microbes in Human Welfare“. Quiz No. 2

More MCQs: "Microbes in Human Welfare" | “Biology and Human Welfare” | All MCQs Quiz on "Biology" | More MCQs on Biology

Microbes in Human Welfare: MCQs Quiz - 2

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Question 1
The common nitrogen-fixer in paddy fields is
A
Frankia
B
Rhizobium
C
Azospirillum
D
Oscillatoria
Question 2
The most common fungal partners of mycorrhiza are ______ species.
A
Azotobacter
B
Glomus
C
Azolla
D
Frankia
Question 3
The most important of the symbiotic nitrogen fixing bacteria which forms nodules on the roots of legume plants is
A
Aspergillus
B
Rhizobium
C
Penicillium
D
Streptococcus
Question 4
The symbiotic association of fungi with the roots of higher plants is called:
A
Eubacteria
B
Actinomycetes
C
Mycorrhiza
D
None of these
Question 5
The term antibiotic was coined by:
A
Howard Florey
B
John Tyndall
C
Selman Waksman
D
Gerhard Domagk
Question 6
The yeast that is used in alcohol production and bread making is
A
Escherichia coli
B
Saccharomyces cerevisiae
C
Bacillus subtilis
D
Pseudomonas putida
Question 7
What is the common name of Drosophila melanogaster?
A
Fruit fly
B
Roundworm
C
Zebrafish
D
Chlamydia
Question 8
Which of the following bacterium produces butyric acid?
A
Acetobacter aceti
B
Clostridium butylicum
C
Lactobacillus
D
None of these
Question 9
Which of the following is a gram-negative bacterium?
A
Escherichia coli
B
Bacillus subtilis
C
Streptomyces coelicolor
D
Amycolatopsis orientalis
Question 10
Which of the following is a symbiotic nitrogen fixer?
A
Azolla
B
Glomus
C
Azotobacter
D
Frankia
Question 11
Which of the following is added to milk to curdle it or produce fermented milk products?
A
Azotobacter
B
Lactobacillus
C
Rhizobium
D
Clostridium
Question 12
Which of the following will begin fixing nitrogen only after they stop reproducing?
A
Penicillium
B
Rhizobium
C
Aspergillus
D
Streptococcus
Question 13
Which of the followings is also called sac fungi that live parasitically and in various habitats?
A
Basidiomycetes
B
Zygomycetes
C
Ascomycetes
D
Basidiomycetes
Question 14
Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage?
A
Marsh gas
B
Laughing gas
C
Propane
D
Mustard gas
Question 15
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
A
Clostridium butylicum - lactic acid
B
Aspergillus niger - citric acid
C
Yeast - statins
D
Acetobacter aceti - acetic acid
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2 thoughts on “Microbes in Human Welfare: MCQs Quiz – 2

  • Naresh mishra

    These kind of question will be helpfull for all entrance exam..thaxx for these valuable question ..