Q1. Which microorganism helps in the biocontrol of aphids in agriculture?A. Bacillus thuringiensisB. Ladybird beetleC. TrichodermaD. Aspergillus
Q2. Which of the following bacteria is used for the commercial production of acetic acid?A. LactobacillusB. Acetobacter acetiC. Clostridium butylicumD. Saccharomyces cerevisiae
Q3. Which of the following statements about Bt toxin is incorrect?A. Bt toxin is produced by Bacillus thuringiensis.B. Bt toxin is harmful to humans.C. Bt toxin becomes active in the alkaline gut of insects.D. Bt crops have been genetically modified to produce Bt toxin.
Q4. Which of the following microbes is used in the commercial production of butanol?A. Clostridium butylicumB. Saccharomyces cerevisiaeC. Bacillus thuringiensisD. Methanobacterium
Q5. Which of the following microbes is commonly used for biofertilization in paddy fields?A. AzospirillumB. RhizobiumC. NostocD. Clostridium
Q6. Which metabolic product of yeast is responsible for the rising of dough in bread-making?A. Lactic acidB. EthanolC. Carbon dioxideD. Acetic acid
Q7. Which of the following statements about biogas production is correct?A. Methanogens help in biogas production.B. Biogas plants require oxygen to function.C. Biogas mainly consists of nitrogen and oxygen.D. Anaerobic bacteria are not involved in biogas production.
Q8. Which of the following microbes is involved in the anaerobic digestion of sewage sludge?A. MethanobacteriumB. AzospirillumC. PseudomonasD. Rhizobium
Q9. Which biofertilizer helps in phosphorus absorption for plants?A. RhizobiumB. AzotobacterC. GlomusD. Nostoc
Q10. Which of the following bioactive molecules is used to lower cholesterol levels?A. Cyclosporin AB. StatinsC. StreptokinaseD. Penicillin