You need to login first

Login information

Haven't yet registered?

* * * *

Support Us

If you found our community helpful, your small donation will continue to help us reach more students around the globe. You may also like us on Facebook or follow us on Twitter.
Pages: 1     Go Down
  New Topic  |  Print  
Exercise 10
Read 2768 times | 1 Replies | Average Rating: Not Rated Yet
Posts: 5
Points: 26
Rep:  +0   -0

For a more comfortable homework help experience, try
Exercise 10
1. Discuss the relative convenience of pour- and streak-plate techniques in
culturing clinical specimens?
2. Why are plate cultures incubated in the inverted positions?
3. How do you decide which colonies should be picked from a plate culture
of a mixed flora?
4. Why is it necessary to make pure subcultures of organisms grown from
clinical specimens?
5. How can you determine whether a culture or subculture is pure?
6. What kinds of clinical specimens may yield a mixed flora in bacterial
Page 3 of 5
From Laboratory Manual & Workbook in Microbiology Applications to Patient Care (9th ed.). By
Josephine A. Morello, Helen Eckel Mizer, and Paul A. Granato Copyright © 2006 The McGraw-
Hill Companies, Inc. Reprinted with permission of The McGraw-Hill Companies, Inc.
BIO2071_Microbiolog y Laboratory
7. When more than one colony type appears in pure culture, what are the
most likely sources of extraneous contamination?
Exercise 16
1. Define a differential medium and discuss its purpose.
2. Define a selective medium and describe its uses.
3. Why is MacConkey agar selective as well as differential?
4. Why is blood agar useful as a primary isolation medium?
5. How can one distinguish E. coli from P. aerugionosa on
Nutrient agar?
___________________ ___________________ ___________________ __
Blood agar?
___________________ ___________________ ___________________ __
MAC agar?
___________________ ___________________ ___________________ __
6. What is the major difference between Modified Thayer-Martin (MTM) and
chocolate agar? When would you use MTM rather than chocolate agar?
7. If you wanted to isolate S. aureus from a pus specimen containing a mixed
flora, what medium would you choose to get results most rapidly? Why?
8. What is the value of making a Gram stain directly from a clinical
9. Why is aseptic technique important in the laboratory? In patient care?

Report this PostReport Abuse
Reply# 1
Posts: 8133
Points: 4756
Rep:  +345   -11

3 years ago

Please show your work, this seems like the whole assignment.

Report this PostReport Abuse
Pages: 1     Go Up New Topic Print
Related Topics
Replies Author Last post
Anatomy and Physiology | Started by jj889 | Views: 5021
Last post Last post by lewis
3 years ago
Anatomy and Physiology | Started by bionicman | Views: 30939
Last post Last post by raininginny
3 years ago
Anatomy and Physiology | Started by cmbarnes2 | Views: 622
Last post Last post by cmbarnes2
3 years ago
Nutrition and Food Sciences | Started by vira | Views: 143
Last post Last post by padre
11 months ago
Note: This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.