Question

3.
What effect does temperature has on the bacterial growth?
4. List some of the major useful actions of bacteria.
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Answer 1

Q. What effect does temperature has on the bacterial growth?

Ans. Physical Factors that Control Microbial Growth. Generally,an increase in temperature will increase enzyme activity. But if temperatures get too high, enzyme activity will diminish and the protein (the enzyme) will denature. On the other hand, lowering temperature will decrease enzyme activity.

Q. List some of the major useful actions of bacteria.

Ans. Following is the list of some of the major useful functions of bacteria:

• Nature's Scavengers: Bacteria decompose organic matter, by decay and putrefaction, to keep our earth clean.

• Control of Pollution: ADVERTISEMENTS.

• Disposal of Sewage and Agro-wastes: Sewage is the household and industrial waste water discharges.

• Symbiosis.

• Material Cycling.

• Gobargas (biogas).

• Ensilage.

• Soil Fertility.

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Answer 2

Explanation:

Nature's Scavengers: Bacteria decompose organic matter, by decay and putrefaction, to keep our earth clean. ...

Control of Pollution: ADVERTISEMENTS: ...

Disposal of Sewage and Agro-wastes: Sewage is the household and industrial waste water discharges. ...

Symbiosis: ...

Material Cycling: ...

Gobargas (biogas): ...

Ensilage: ...

Soil Fertility: