Question

Answer the following questions in brief.
1) Why are viruses considered as being at the 'borderline' between living and
non-living things?
What is fermentation? How is this process useful in the food and beverage
industries?
2. what is fermentation? how is this process useful in the food and beverage industries?
3) 'In the absence of microorganisms the earth would become a heap of dead
plants and animals.' Justify this statement.
4) Munna observes that the yield of wheat, growing in his field, has reduced
in the current year. He gets the soil tested and the report confirms the
deficiency of one particular nutrient. Accordingly, he is advised to grow
peas after harvesting wheat.
(i) Name the nutrient found insufficient.
(ii) How do you think growing peas will help in replenishing the soil?
5.) Why does it take less time to prepare curd in summers as compared to
preparing it in winters?
6) How are the following diseases transmitted:
(a) Malaria (b) Common cold (c) Tetanus (d) Typhoid

7) What are antibiotics? How are they produced? Give two examples of these.



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Answer 1

Answer:

$\tt{Answer\: the\: following\: questions\: in\: brief.}$

$\fbox\red{answer 1}$ => viruses considered as being borderline between living and non-living things because it show character of both living and non living.

$\fbox\red{answer 2}$ => the chemical breakdown of a substances by bacteria, yeast or other micro organisms typically involving effervencenes and the giving of heat.

it's helps in the fermentation of alcohol and organic acid from The breakdown of carbohydrate this process helps in the food beverage industry at an accelerated rate

$\fbox\red{answer 3}$ => micro organism help in decomposing of Dead plant and animals they worked as a decomposer without them these will be no decomposing of Dead organisms and hence lead to the health problem.

$\fbox\red{answer 4}$ => i) nitrogen

ii) the plant pea is leguminous crop which has nitrogen fixing bacteria called Rhizobium in its root nodules which help in fixing gas.

$\fbox\red{answer 5}$ => it take less time to prepare curd in summers as compared to preparing it in winter because in summer curd get sufficient temperature warmth moisture and air which is needed to grow microorganism but in winter it is not available easily.

$\fbox\red{answer 6}$ =>

i) malaria :- anopheles mosquito( animal )

ii ) common cold :- air

iii ) tetanus :- soil

iv) typhoid :- water (contaminated water)

$\fbox\red{answer 7}$ => antibiotics are chemical which inhibits the growth of other microorganisms by affecting their life process

example :- tetracycline , streptomycin.

Answer 2

Answer:

this is not math question