Q1. Which of the following microbial enzymes is used to clarify fruit juices?A. LipaseB. PectinaseC. ProteaseD. Amylase
Q2. Which of the following statements about Bt toxin is incorrect?A. Bt toxin is produced by Bacillus thuringiensis.B. Bt toxin is active inside bacterial cells.C. Bt toxin is used in genetically modified crops.D. Bt toxin becomes active in the alkaline gut of insects.
Q3. Which of the following organisms is a major component of biofertilizers in agriculture?A. PenicilliumB. SaccharomycesC. RhizobiumD. Streptococcus
Q4. Which microorganism is used in the fermentation of soybeans to produce tempeh?A. RhizopusB. Saccharomyces cerevisiaeC. LactobacillusD. Aspergillus
Q5. Which of the following processes helps in the removal of small debris from sewage water?A. Secondary treatmentB. Tertiary treatmentC. Primary treatmentD. Anaerobic digestion
Q6. Which of the following is an example of a biofertilizer that enriches soil nitrogen content?A. AspergillusB. NostocC. SaccharomycesD. Penicillium
Q7. Which of the following microbial processes results in the production of methane in biogas plants?A. FermentationB. MethanogenesisC. PhotosynthesisD. Nitrification
Q8. Which of the following processes uses microbial action to remove organic matter from sewage?A. SedimentationB. FiltrationC. Biological treatmentD. Coagulation
Q9. Which microbial biofertilizer is commonly used for non-leguminous plants?A. RhizobiumB. AzospirillumC. GlomusD. Nostoc
Q10. Which of the following plays an essential role in reducing pollution by breaking down organic waste?A. MicrobesB. Heavy metalsC. Synthetic polymersD. Pesticides