Agricultural microbiology mcq with answers February 13, 2024 by Flair Pharma Results HD Quiz powered by harmonic design Table of Contents Toggle Results#1. What is the primary role of nitrogen-fixing bacteria in agriculture?#2. Which microorganism is commonly used in the production of biofertilizers?#3. What is the primary function of mycorrhizal fungi in plants?#4. Which microorganism is responsible for the fermentation of milk into yogurt?#5. What is the role of Azotobacter in soil?#6. Which of the following is an example of a biopesticide?#7. Which microorganism is involved in the production of antibiotics such as penicillin?#8. What is the primary function of Trichoderma in agriculture?#9. Which process is essential for the conversion of atmospheric nitrogen into a form usable by plants?#10. Which of the following is a symbiotic association between a fungus and the roots of a plant?#11. What is the main purpose of using microbial inoculants in agriculture?#12. Which microorganism is used for the biological control of nematodes in the soil?#13. Which of the following is an example of a nitrogen-fixing cyanobacterium?#14. What is the primary role of Bacillus thuringiensis (Bt) in agriculture?#15. Which group of microorganisms is responsible for the decomposition of organic matter in the soil?#16. What is the primary function of Agrobacterium tumefaciens in agriculture?#17. What is the primary focus of Agricultural Microbiology?#18. Which of the following is a nitrogen-fixing bacterium commonly associated with legume roots?#19. Mycorrhizae are symbiotic associations between plant roots and:#20. 14. The term "Rhizosphere" refers to: #1. What is the primary role of nitrogen-fixing bacteria in agriculture? a. Photosynthesis a. Photosynthesis b. Nitrogen fixation b. Nitrogen fixation c. Respiration c. Respiration d. Cell division d. Cell division #2. Which microorganism is commonly used in the production of biofertilizers? a. Escherichia coli a. Escherichia coli b. Rhizobium b. Rhizobium c. Saccharomyces cerevisiae c. Saccharomyces cerevisiae d. Staphylococcus aureus d. Staphylococcus aureus #3. What is the primary function of mycorrhizal fungi in plants? a. Nitrogen fixation a. Nitrogen fixation b. Phosphorus absorption b. Phosphorus absorption c. Carbon assimilation c. Carbon assimilation d. Water transport d. Water transport #4. Which microorganism is responsible for the fermentation of milk into yogurt? a. Lactobacillus bulgaricus a. Lactobacillus bulgaricus b. Streptococcus pneumoniae b. Streptococcus pneumoniae c. Bacillus subtilis c. Bacillus subtilis d. Aspergillus niger d. Aspergillus niger #5. What is the role of Azotobacter in soil? a. Nitrogen fixation a. Nitrogen fixation b. Phosphorus solubilization b. Phosphorus solubilization c. Cellulose degradation c. Cellulose degradation d. Nitrate reduction d. Nitrate reduction #6. Which of the following is an example of a biopesticide? a. Glyphosate a. Glyphosate b. Bacillus thuringiensis b. Bacillus thuringiensis c. Malathion c. Malathion d. Paraquat d. Paraquat #7. Which microorganism is involved in the production of antibiotics such as penicillin? a. Streptococcus a. Streptococcus b. Escherichia coli b. Escherichia coli c. Penicillium c. Penicillium d. Bacillus cereus d. Bacillus cereus #8. What is the primary function of Trichoderma in agriculture? a. Nitrogen fixation a. Nitrogen fixation b. Biological control of plant pathogens b. Biological control of plant pathogens c. Phosphorus absorption c. Phosphorus absorption d. Carbon assimilation d. Carbon assimilation #9. Which process is essential for the conversion of atmospheric nitrogen into a form usable by plants? a. Nitrification a. Nitrification b. Denitrification b. Denitrification c. Nitrogen fixation c. Nitrogen fixation d. Ammonificationd. d. Ammonificationd. #10. Which of the following is a symbiotic association between a fungus and the roots of a plant? a. Mycorrhiza a. Mycorrhiza b. Lichen b. Lichen c. Algae c. Algae d. Protozoa d. Protozoa #11. What is the main purpose of using microbial inoculants in agriculture? a. Soil sterilization a. Soil sterilization b. Pest control b. Pest control c. Disease prevention c. Disease prevention d. Enhancing plant growth d. Enhancing plant growth #12. Which microorganism is used for the biological control of nematodes in the soil? a. Rhizobium a. Rhizobium b. Bacillus subtilis b. Bacillus subtilis c. Trichoderma c. Trichoderma d. Entomopathogenic nematodes d. Entomopathogenic nematodes #13. Which of the following is an example of a nitrogen-fixing cyanobacterium? a. Rhizobium a. Rhizobium b. Azotobacter b. Azotobacter c. Anabaena c. Anabaena d. Pseudomonas d. Pseudomonas #14. What is the primary role of Bacillus thuringiensis (Bt) in agriculture? a. Nitrogen fixation a. Nitrogen fixation b. Biological control of insects b. Biological control of insects c. Phosphorus solubilization c. Phosphorus solubilization d. Cellulose degradation d. Cellulose degradation #15. Which group of microorganisms is responsible for the decomposition of organic matter in the soil? a. Nitrogen-fixing bacteria a. Nitrogen-fixing bacteria b. Decomposer fungi b. Decomposer fungi c. Actinomycetes c. Actinomycetes d. Cyanobacteria d. Cyanobacteria #16. What is the primary function of Agrobacterium tumefaciens in agriculture? a. Nitrogen fixation a. Nitrogen fixation b. Plant disease b. Plant disease c. Genetic engineering c. Genetic engineering d. Phosphorus absorption d. Phosphorus absorption #17. What is the primary focus of Agricultural Microbiology? a. Study of plant diseases a. Study of plant diseases b. Study of soil microorganisms b. Study of soil microorganisms c. Study of insect pests c. Study of insect pests d. Study of crop rotation d. Study of crop rotation #18. Which of the following is a nitrogen-fixing bacterium commonly associated with legume roots? a. Escherichia coli a. Escherichia coli b. Bacillus subtilis b. Bacillus subtilis c. Rhizobium leguminosarum c. Rhizobium leguminosarum d. Pseudomonas aeruginosa d. Pseudomonas aeruginosa #19. Mycorrhizae are symbiotic associations between plant roots and: a. Bacteria a. Bacteria b. Fungi b. Fungi c. Viruses c. Viruses d. Nematodes d. Nematodes #20. 14. The term "Rhizosphere" refers to: a. Soil without microorganisms a. Soil without microorganisms b. Plant roots and the surrounding soil influenced by microbial activity b. Plant roots and the surrounding soil influenced by microbial activity c. A type of nitrogen-fixing bacteria c. A type of nitrogen-fixing bacteria d. The upper layer of soil d. The upper layer of soil Finish
