Question

1. where are microorganisms found in nature?

2. how does the bacterium lactobacillus help in curd formation?

3. In bread making why does the dough rise when East is added to it?

4. write briefly about the commercial uses of microorganisms in the production of alcohol?

5. what is the role of bacteria in increasing soil fertility?

6. what general precaution/measures should be taken to prevent microbial disease?

7. mention the various advantages of food preservation?


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Answer 1

Answer:

1. Microorganisms are cosmopolitan i.e,they are found everywhere in the environment

2. Lactobacillus ferments the milk and turns milk to curd

3. Yeast is a fungi which helps in rising of dough. When it ferments it releases carbon dioxide which is a gas and rises up

5. Bacteria are the microorganisms which decompose the dead and decaying matter and thereby adding nutrients to the soil. So it increases the soil fertility.

6.We need to keep ourselves clean always

7. food preservation through drying,salting or air tight containers.

it helps in storing food for a long time without being spoiled

Hope it helps you

Answer 2

1. Habitate present in nature
2.
3.