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Recent questions tagged microbes in humans welfare
Questions
A small amount of curd was added to cold milk for converting it into curd. But milk did not get curdled. Why?
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Scientists have succeeded in introducing toxin gene of Bacillus thuringiensis into plants like cotton. What purpose is achieved through this action?
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
An organic farmer requires a bio control agent which is species specific and has no negative impact on non-target organism. Suggest the name of such a bio control agent.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Which one of these is a proteinaceous infecting agent?
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Bottled juices are clearer compared to homemade juice. Give reason.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Can we imagine a world without antibiotics? Explain briefly.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Drinks like Whisky and Rum are more intoxicating than wine. Why?
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Name the type of association that the genus Glomus exhibits with higher plants.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Which of the following is a cyanobacterium that can fix atmospheric nitrogen ? <br> Azospirillum, Oscillatoria, Spirulina.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Which of the following is a free-living bacterium that can fix nitrogen in the soil? <br> Spirulina, Azospirillum, Sonalika.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Why is sewage water treated until the BOD is reduced? Give a reason.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Milk starts to coagulate when Lactic Acid Bacteria (LAB) is added to warm milk as a starter. Mention any two other benefits which LAB provide.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Mention the information that the health workers derive by measuring BOD of a water body.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Mention the role of cyanobacteria as a biofertiliser.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
What makes the nucleopolyhedrovirus a desirable biological control agent?
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Name the gas released and the process responsible for puffing up of the bread dough when Saccharomyces cerevisiae is added to it.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
Name the nutrient that gets enhanced while curdling of milk by Lactobacillus.
cbsc
class 12
biology
microbes in humans welfare
sec-a
asked
Apr 17, 2019
by
priyanka.clay6
1
answer
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