English
Karnataka Board PUCPUC Science 2nd PUC Class 12

How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?

Advertisements
Advertisements

Question

How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?

Very Short Answer
Advertisements

Solution

Bacillus thuringiensis produces endotoxin, which disrupts the gut lining of caterpillar larvae, killing them and controlling insect pests effectively. This toxin has been used in biopesticides and genetically modified Bt crops like cotton.

shaalaa.com
  Is there an error in this question or solution?
Chapter 10: Microbes in Human Welfare - SHORT ANSWER [Page 73]

APPEARS IN

NCERT Exemplar Biology Exemplar [English] Class 12
Chapter 10 Microbes in Human Welfare
SHORT ANSWER | Q 2. | Page 73
Nootan Biology [English] Class 12 ISC
Chapter 12 Microbes in Human Welfare
Test Your Progress | Q 30. | Page 503

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).


Trichoderma konigi is a source of _______ enzyme.

(A) invertase

(B) lipase

(C) pectinase

(D) cellulase


How do organic farmers control pests?


Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.


State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.


Name the bioactive molecules produced by Trichoderma polysporum and Monascus purpureus.


How do mycorrhizae act as biofertilizers? Explain.


Mention one advantage and one disadvantage to a farmer who uses them.


Name the type of association that the genus Glomus exhibits with higher plants.


What is VAM?


Give two examples of microbial pesticides with their hosts.


Organic farmers prefer the biological control of diseases and pests to the use of chemicals for the same purpose. Justify


Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.


Give the biological name of the following:

The fungus that is being developed as a bio-control agent.


How does the activity of each one of the following help in organic farming?
Mycorrhiza


Select the odd one from given herbicides.


Which of the following is TRUE regarding Bacillus thuringiensis?


From the following which one is NOT a bacterial herbicide?


Which of the following is the host for microbial pesticide Beauveria bassiana?


Which of the following is TRUE regarding Xanthomonas and Pseudomonas?


Which of the following is the INCORRECT statement?


Which group features jointed appendages?


Which one of the following statements is WRONG in relation to transgenic Bt cotton plant?


Name any genetically modified crop.


How do microbes reduce the environmental degradation caused by chemicals?


Nucleopolyhedrovirus do not show ______.


Which of the following is incorrect regarding Bacillus thuringiensis?


Protozoan like Nosema locustae is used for controlling the target pests like ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×