Microbio
El Camino College Compton Educational Center Summer 2010 General microbiology lecture part review questions for final exam Adapted by Dr. Eyob Wallano
1. Which is mismatched? A. parasitism – one organism benefits and the other receives no benefit B. competition – one organism gives off substances that inhibit or kill other organisms C. predator – seeks out and ingests live prey D. scavengers – feed on live to dead cells and wastes E. omnivores – feed on plants and flesh
2. The conversion of gaseous nitrogen (N2) to the ammonium ion (NH4+) occurs during A. ammonification. B. nitrogen fixation. C. photosynthesis. D. nitrification. E. denitrification.
3. Which of the following is a nitrifying microbe? A. Rhizobium B. Nitrobacter C. Pseudomonas D. Nostoc E. Azotobacter
4. Using microbes to break down or remove toxic wastes in water and soil is called A. decomposition. B. synergism. C. mineralization. D. bioremediation. E. recycling. 5. Potable water is A. contaminated. B. polluted. C. safe to drink. D. foul testing. E. None of the choices are correct. 6. Indictor bacteria are A. coliforms. B. gram-negative rods. C. evidence of fecal contamination. D. used in water quality tests. E. All of the choices are correct.
7. Analysis of a water sample by a series of presumptive, confirmatory, and completed tests that help establish an estimate of coliform numbers in the water is called A. membrane filter method. B. most probable number (MPN) procedure. C. standard plate count. D. coliform determination test. E. None of the choices are correct.
8. Which is the first step in water purification? A. chlorination B. aeration and settling C. sedimentation D. storage E. filtration
9. Water moves through sand beds and activated charcoal in this step of water purification: A. chlorination B. aeration and settling C. sedimentation D. storage E. filtration
10. The yeast used in making bread, beer, and wine is A. Saccharomyces cerevisiae. B. Leuconostoc
1. Which is mismatched? A. parasitism – one organism benefits and the other receives no benefit B. competition – one organism gives off substances that inhibit or kill other organisms C. predator – seeks out and ingests live prey D. scavengers – feed on live to dead cells and wastes E. omnivores – feed on plants and flesh
2. The conversion of gaseous nitrogen (N2) to the ammonium ion (NH4+) occurs during A. ammonification. B. nitrogen fixation. C. photosynthesis. D. nitrification. E. denitrification.
3. Which of the following is a nitrifying microbe? A. Rhizobium B. Nitrobacter C. Pseudomonas D. Nostoc E. Azotobacter
4. Using microbes to break down or remove toxic wastes in water and soil is called A. decomposition. B. synergism. C. mineralization. D. bioremediation. E. recycling. 5. Potable water is A. contaminated. B. polluted. C. safe to drink. D. foul testing. E. None of the choices are correct. 6. Indictor bacteria are A. coliforms. B. gram-negative rods. C. evidence of fecal contamination. D. used in water quality tests. E. All of the choices are correct.
7. Analysis of a water sample by a series of presumptive, confirmatory, and completed tests that help establish an estimate of coliform numbers in the water is called A. membrane filter method. B. most probable number (MPN) procedure. C. standard plate count. D. coliform determination test. E. None of the choices are correct.
8. Which is the first step in water purification? A. chlorination B. aeration and settling C. sedimentation D. storage E. filtration
9. Water moves through sand beds and activated charcoal in this step of water purification: A. chlorination B. aeration and settling C. sedimentation D. storage E. filtration
10. The yeast used in making bread, beer, and wine is A. Saccharomyces cerevisiae. B. Leuconostoc