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Microbes in Human Welfare

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Which of the following is not used as a biopesticide?

  • Bacillus thuringiensis
  • Trichoderma harzianum

  • Nuclear Polyhedrosis virus (NPV)

  • Xanthomonas campestris


D.

Xanthomonas campestris

The bacterium Xanthomonas campestris is the causative agent of plant disease, black rot of cabbage.
Bacillus thuringiensis, T. harzianum and NPV are biopesticides.

The bacterium Xanthomonas campestris is the causative agent of plant disease, black rot of cabbage.
Bacillus thuringiensis, T. harzianum and NPV are biopesticides.


Name one micro-organism which is used in bakery.

Yeast .

What is brewing ?

Brewing is a complex fermentation process, which involves the production of malt beverages such as beer, ale and stout. Saccharomyces cerevisiae is used for the process of fermentation.

What is the difference between rum and whisky ?

Rum is obtained by the fermention of  sugarcane juice or molasses. It is fermented for a shorter period of time
while
whisky is obtained by fermentation of grains like wheat, corn,barley and rye. The fementation is done for a longer period of time.

Which bacterium is responsible for the formation of curd from milk?

Lactobacillus  (Lactic acid bacteria).

Give the source of invertase enzyme (sucrase).

Saccharomyces cerevisiae