Questions 1-11:

1.   (TCO 1) Why are microorganisms so important to our ecosystems?

2.   (TCO 1) The scientific method consists of four basic steps. Which option below shows the correct sequence of events?

3.   (TCO 1) Which of the following is a practical application of the use of Saccharomyces cerevisiae?

4.   (TCO 1) Which of the following statement(s) is true of yeasts?

5.   (TCO 2) Which of the following is NOT an example of an archaea?

6.   (TCO 2) Which of the following statements about prokaryotic arrangement is TRUE?

7.   (TCO 2) What is the potential overall magnification of a microscope that has a 10X ocular lens and a 40X objective lens?

8.   (TCO 2) Which unit of measurement is used to measure intracellular organelles and viruses?

9.   (TCO 2) How is the information in a dichotomous key arranged?

10.  (TCO 2) Bacterial cells with bound antibodies carrying dye are best observed with which type of microscope?

11.  (TCO 2) A microbiologist wants to study the process of viral infection of animal cells. She wants to be able to see the viruses as they enter the cells.

a)  What microscope would you suggest she use for these studies? Why? (5 pts.)

b)  How should she prepare her samples for microscopy? (5 pts.)