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Biopesticides are

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Important Questions on Microbes in Human Welfare

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 61

When a natural predator (living organism) is applied on the other pathogen organisms to control them, this process is called as

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 62
Dragonflies are used to get rid of
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 63
A microbial biocontrol agent that can be used to control butterfly caterpillars is
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 64
Bacillus thuringiensis is used to control:
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 65
Bacillus thuringiensis (Bt) strains have been used for designing novel _____________.
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 66

Fill up the blanks by selecting the correct option.
(i) Biogas is a mixture of gases which predominantly contains _____ and is used as _____.
(ii) Methanogens are commonly found in the _____ during sewage treatment.
(iii) ______ species are free-living fungi and effective biocontrol agents of several plant pathogens.

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 67

Choose the correct statement regarding the biocontrol agents.

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 68
Trichoderma harzianum (or Trichoderma) has proved to be a useful microorganism for