Question
Which one of the following is an example of carrying out biological control of pests/diseases using microbes?
Trichoderma sp. against certain plant pathogens
Nucleopolyhedrovirus against white rust in Brassica
Bt-cotton to increase cotton yield
Ladybird beetle against aphids in mustard
According to the NCERT text, Trichoderma species are free-living fungi very common in root ecosystems that are effective biocontrol agents of several plant pathogens. In contrast, the Ladybird beetle is an insect (not a microbe) used to control aphids. Nucleopolyhedrovirus attacks insects and other arthropods, not plant diseases like white rust (which is fungal). Bt-cotton is a genetically modified crop, whereas Trichoderma represents the direct use of a microbe as a biocontrol agent.
This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Microbes in Human Welfare. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
More Microbes in Human Welfare Questions
Which one of the following helps in absorption of phosphorus from the soil by plants?
Monascus purpureus is the yeast used commercially in the production of:
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
Match the following list of microbes with the products/functions they are used for: Column I A. Saccharomyces cerevisiae B. Monascus purpureus C. Trichoderma polysporum D. Propionibacterium sharmanii Column II 1. Production of immunosuppressive agents 2. Ripening of Swiss cheese (Large holes) 3. Commercial production of ethanol 4. Blood cholesterol lowering agents
Which of the following statements about methanogens is not correct?
Match the following organisms with the products they produce: Column I (a) Aspergillus niger (b) Acetobacter aceti (c) Clostridium butyricum (d) Lactobacillus Column II (i) Ethanol (ii) Citric acid (iii) Lactic acid (iv) Acetic acid (v) Butyric acid
Match List-I with List-II: List-I A. Saccharomyces cerevisiae B. Aspergillus niger C. Trichoderma polysporum D. Clostridium butylicum List-II I. Citric acid II. Butyric acid III. Ethanol IV. Cyclosporin-A
During sewage treatment, biogases are produced which include:
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