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Microbiology & 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!

Page 1

Question 1 1. The relationship between nitrogen-fixing bacteria and legumes can best be described as:

Question 2 2. Organisms that fix atmospheric nitrogen into a usable form for plants and humans are:

Question 3 3. Earth's atmosphere is made up of several components including carbon, oxygen, and nitrogen. About how much of the atmosphere is nitrogen?

Question 4 4. What term describes the process of converting atmospheric nitrogen to ammonia?

Question 5 5. Nitrogen is part of what vital substance in plant cells?

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Question 6 6. Identify the statement that is NOT true about acid rain.

Question 7 7. When burned, which fossil fuel will release the greatest amount of pollution into the air?

Question 8 8. Identify the conversion which represents nitrification.

Question 9 9. Which of the following is NOT a source of nitrogen that is available to plants?

Question 10 10. How is it possible to conclude that eutrophication of bodies of water has occured?

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Question 11 11. We can guess that drinking water has been contaminated by:

Question 12 12. One of the most common bacteria found in the soil and the intestinal tract of animals is known as:

Question 13 13. A protozoan, spread by feces contaminated material, which may cause diarrhea in humans is called:

Question 14 14. Which of the following is a good way to try and combat pathogens found in feces?

Question 15 15. A bacterium, spread by feces contaminated material, which may cause diarrhea in humans is called:

Microbiology & 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!

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