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Microbiology Laboratory Procedures 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 stage characterized by a gradual decrease in cell populations is called the:

Question 2 2. What is the generation time of a culture of bacteria if it grows from 100 cells to 800 cells in six hours?

Question 3 3. If you begin with 800 bacterial cells with a doubling time of 20 minutes, approximately how many bacteria will be present after 3 hours?

Question 4 4. Which of the following is a drawback to using cell mass determination as a method of bacterial enumeration?

Question 5 5. Which of the following can be used to measure viable cell counts?

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Question 6 6. How does measuring cellular activity help enumerate bacteria?

Question 7 7. Which of the following types of microscopes work by running a physical probe across the surface of an object?

Question 8 8. Which of the following is NOT a use of microscopy?

Question 9 9. Which of the following kind of microscope first allowed us to view living cells?

Question 10 10. Environmental conditions that can influence bacterial growth include all of the following EXCEPT

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Question 11 11. A carbohydrate isolated from marine algae and used as a thickener in culture media is

Question 12 12. Which of the following statements about bacterial growth is FALSE?

Question 13 13. Calculate the final dilution in the following serial dilution: 1/10, 1/10, 1/10, 1/10, 1/10, 1/10, 1/10

Question 14 14. A serial dilution is

Question 15 15. Dilution blank refers to

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Question 16 16. A cation is

Question 17 17. In a negative stain

Question 18 18. The Gram stain is an example of

Question 19 19. Which statement about the Gram stain is TRUE?

Question 20 20. Which option lists the major components of the Gram stain in the proper order?

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Question 21 21. Gram-negative bacteria appear

Question 22 22. Which of the following statements about Gram staining is TRUE?

Question 23 23. Gram-positive bacteria have cell walls with

Question 24 24. Gram-negative bacteria have cell walls with

Question 25 25. A selective media

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Question 26 26. A differential media

Question 27 27. MacConkey agar

Question 28 28. Which of the following refers to the time required for one cell to become two cells?

Question 29 29. Which of the following is an advantage of using turbidimetric measurements?

Question 30 30. Which of the following types of microscope first allowed us to view the atom directly?

Microbiology Laboratory Procedures 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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