Class 12 Biology

Poll

Aaral

Asked: February 26, 2021In: Class 12 Biology

Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because −

NCERT Solutions for Class 12 Biology Chapter 12 Biotechnology and its Applications Important Board Questions Biotechnology and its Applications NCERT Books for Session 2022-2023 CBSE Board and UP Board Question : 1

Chaaya

Asked: February 25, 2021In: Class 12 Biology

Find out the role of microbes in the following and discuss it with your teacher. (a) Single cell protein (SCP) (b) Soil

NCERT Solutions for Class 12 Biology Chapter 10 Microbes in Human Welfare Important Board Questions Microbes in Human Welfare NCERT Books for Session 2022-2023 CBSE Board and UP Board Question : 13

Chaaya

Asked: February 25, 2021In: Class 12 Biology

Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20mg/L, 8mg/L and 400mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each assuming the river water is relatively clean?

NCERT Solutions for Class 12 Biology Chapter 10 Microbes in Human Welfare Important Board Questions Microbes in Human Welfare NCERT Books for Session 2022-2023 CBSE Board and UP Board Question : 11

Chaaya

Asked: February 25, 2021In: Class 12 Biology

Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.

NCERT Solutions for Class 12 Biology Chapter 10 Microbes in Human Welfare Important Board Questions Microbes in Human Welfare NCERT Books for Session 2022-2023 CBSE Board and UP Board Question : 10

Chaaya

Asked: February 25, 2021In: Class 12 Biology

Do you think microbes can also be used as source of energy? If yes, how?

NCERT Solutions for Class 12 Biology Chapter 10 Microbes in Human Welfare Important Board Questions Microbes in Human Welfare NCERT Books for Session 2022-2023 CBSE Board and UP Board Question : 9

Category: Class 12 Biology

Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because −

Find out the role of microbes in the following and discuss it with your teacher. (a) Single cell protein (SCP) (b) Soil

Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.

Do you think microbes can also be used as source of energy? If yes, how?

Which is the best website providing NCERT Solutions?

NCERT Books

Where can I get NCERT books in PDF format?

NIOS

NCERT Solutions

Forgot Password

Category: Class 12 Biology

Discussion Forum Latest Questions