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Microbes in Human Welfare

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Curing of tea leaves is brought about by the activity of

• bacteria

• mycorrhiza

• viruses

• fungi

A.

bacteria

Curing of tea levels is brought about by the activity of bacteria. It is essentially an oxidation dry fermentation process, during which, water is driven off, the green colour is lost and the leaves assume a tougher texture and undergo chemical changes.
Mycorrhiza is a mutually beneficial association between fungi and the roots of higher plants. Viruses and fungi are not involved in the curing process of tea leaves.

Curing of tea levels is brought about by the activity of bacteria. It is essentially an oxidation dry fermentation process, during which, water is driven off, the green colour is lost and the leaves assume a tougher texture and undergo chemical changes.
Mycorrhiza is a mutually beneficial association between fungi and the roots of higher plants. Viruses and fungi are not involved in the curing process of tea leaves.

1234 Views

Name one micro-organism which is used in bakery.

Yeast .
622 Views

Give the source of invertase enzyme (sucrase).

Saccharomyces cerevisiae
607 Views

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.
681 Views

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

Lactobacillus  (Lactic acid bacteria).
2900 Views

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.
587 Views