Test Bank For Microbiology a Systems Approach 4th Edition By Cowan

ISBN-10: 0073402435

Chapter Number 1

Multiple Choice Questions

1. When humans manipulate the genes of microorganisms, the process is called
3. bioremediation.
4. genetic engineering.
5. epidemiology.
6. immunology.
7. taxonomy.

2. Which of the following are not considered microorganisms?
3. mosquitoes
4. protozoa
5. bacteria
6. viruses
7. fungi

3. All microorganisms are best defined as organisms that
4. cause human disease.
5. lack a cell nucleus.
6. are infectious particles.
7. are too small to be seen with the unaided eye.
8. can only be found growing in laboratories.

4. Which activity is an example of biotechnology?
5. bacteria in the soil secreting an antibiotic to kill competitors
6. a microbiologist using the microscope to study bacteria
7. Egyptians using moldy bread on wounds
8. Escherichia coli producing human insulin
9. public health officials monitoring diseases in a community

5. The study of the immune response to infection caused by microorganisms is
6. hypersensitivity.
7. epidemiology.
8. immunology.
9. morbidity.
10. geomicrobiology.

6. Which of the following does not indicate microbe involvement in energy and nutrient flow?
7. formation of oxygen by an oxygenic photosynthesis
8. formation of greenhouse gases
9. formation of soil
10. digestion of complex carbohydrates in animal diets
11. decomposition of dead matter and wastes

7. The microorganisms that recycle nutrients by breaking down dead matter and wastes are called
8. decomposers.
9. prokaryotes.
10. pathogens.
11. eukaryotes.
12. fermenters.

8. The microorganisms that do not have a nucleus in their cells are called
9. decomposers.
10. prokaryotes.
11. pathogens.
12. eukaryotes.
13. fermenters.

9. The first prokaryotes appeared about ___ billion years ago.
10. 5
11. 4.5
12. 3.5
13. 2
14. 1

10. Which of the following is not a human use of microorganisms?
11. baking bread
12. treating water and sewage
13. fruit production
14. mass-producing antibiotics
15. cleaning up oil spills