MEDIUM
12th CBSE
IMPORTANT
Earn 100

During the secondary treatment of primary effluent, how does a significant decrease in BOD occur?

Important Questions on Microbes in Human Welfare

MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 8
How does the addition of a small amount of curd to fresh milk help in the formation of curd? Mention in nutritional quality that gets added to the curd.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 9
Name the enzyme produced by Streptococcus bacterium. Explain its importance in medical science.
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 10
Why are some molecules called bioactive molecules? Give two examples of such molecules.
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 11
Name the source of cyclosporin-A. How does this bioactive molecule function in our body?
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 12
Name the bacterium responsible for the large holes seen in "Swiss cheese". What's are these due to.
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 13
Why does the Bt toxin not kill the bacterium that produces it but kills the insect that ingests it?
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 14
Explain the significant role of genus Nucleopolyhedrovirus in an ecologically sensitive area.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 10 - Microbes in Human Welfare>TEST QUESTIONS>Q 15
Explain the different steps involved during primary treatment of sewage.