| 11. | Which of the following can be used for the removal of color from the effluents of pulp mill? |
| a. | Coriolus versicolor entrapped in calcium alginate beads |
| b. | Phanerochaete chrysosporium |
| c. | Both (a) and (b) |
| d. | Nitrosomonas europaen |
| View Answer Report Discuss 50-50! |
|
Answer: (c).Both (a) and (b)
|
| 12. | Which of the following have been used to oxidize ammonia and to prevent algal growth? |
| a. | growth of hypomicrobium in presence of added methanol |
| b. | Micrococcus denitrificans cells encapsulated in liquid membranes |
| c. | Both (a) and (b) |
| d. | Nitrosomonas europaen |
| View Answer Report Discuss 50-50! |
|
Answer: (d).Nitrosomonas europaen
|
| 13. | Which of the following microorganisms leach metals out of rock ores and can accumulate silver? |
| a. | Pseudomonas aeruginosa |
| b. | Thiobacillus |
| c. | Pseudomonas putida |
| d. | Zoogloea ramigera |
| View Answer Report Discuss 50-50! |
|
Answer: (b).Thiobacillus
|
| 14. | Inundation involves use of a/an |
| a. | large number of organisms over a short time to suppress/destroy a population |
| b. | organism over a short time to suppress/destroy a population |
| c. | large number of organisms over a long time to suppress/destroy a population |
| d. | organism over a long time to suppress/destroy a population |
| View Answer Report Discuss 50-50! |
|
Answer: (a).large number of organisms over a short time to suppress/destroy a population
|
| 15. | Milbemycin is known to exhibit a broad spectrum of activity against |
| a. | agricultural pests |
| b. | agricultural herbs |
| c. | agricultural insects |
| d. | all of these |
| View Answer Report Discuss 50-50! |
|
Answer: (a).agricultural pests
|