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Microorganisms and the Environment Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which of the following is an example of a heat stable DNA polymerase?

Question 2 2. Identify the statement that is NOT true about acid rain.

Question 3 3. Identify the conversion which represents nitrification.

Question 4 4. A protozoan, spread by feces contaminated material, which may cause diarrhea in humans is called:

Question 5 5. Organisms that make organic compounds from energy that is derived from inorganic molecules are:

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Question 6 6. A bacterium, spread by feces contaminated material, which may cause diarrhea in humans is called:

Question 7 7. Which of the following is NOT a source of nitrogen that is available to plants?

Question 8 8. The relationship between nitrogen-fixing bacteria and legumes can best be described as:

Question 9 9. Organisms with an anaerobic metabolism that can live in oxygen or oxygen-free environments are known as:

Question 10 10. An organism that needs oxygen to grow is known as:

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Question 11 11. Organisms that use an anaerobic metabolism to grow and are killed in the presence of oxygen are known as:

Question 12 12. Geogemma barossii is colloquially known as:

Question 13 13. Tubeworms:

Question 14 14. Hydrogen sulfide:

Question 15 15. Which of the following is a good way to try and combat pathogens found in feces?

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Question 16 16. Deep water vent bacteria:

Question 17 17. One of the most common bacteria found in the soil and the intestinal tract of animals is known as:

Question 18 18. Organisms that prefer to grow using aerobic metabolic processes but can switch to an anaerobic metabolism in the absence of oxygen are known as:

Question 19 19. What term describes the process of converting atmospheric nitrogen to ammonia?

Question 20 20. Methanogens, acetogens, and staphylococcus are all examples of:

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Question 21 21. How is it possible to conclude that eutrophication of bodies of water has occured?

Question 22 22. A heat loving microbe is most properly termed:

Question 23 23. Hydrothermal vents occur as a result of:

Question 24 24. When burned, which fossil fuel will release the greatest amount of pollution into the air?

Question 25 25. We can guess that drinking water has been contaminated by:

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Question 26 26. Thermus aquaticus is associated with:

Question 27 27. Earth's atmosphere is made up of several components including carbon, oxygen, and nitrogen. About how much of the atmosphere is nitrogen?

Question 28 28. Strain 121 showed that:

Question 29 29. Organisms that fix atmospheric nitrogen into a usable form for plants and humans are:

Question 30 30. Nitrogen is part of what vital substance in plant cells?

Microorganisms and the Environment Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Microbiology 101: Intro to Microbiology  /  Science Courses
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