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Microbiology Lab Protocol and Schedule

You will be provided with a lab coat and will need to use latex gloves and safety glasses in the lab.

You will not eat or drink or smoke in the lab.

You will wash your hands before and after each lab

You will wash down all work areas with disinfectant prior to and after each lab.

Laboratory Manual: Selected Exercises from Microbes in Action by Seeley and Van deMark.

MICROBIOlOGY LAB SCHEDULE

Instructions: Except for one or two labs the following schedule of laboratory exercises can be found in the Lab Manual : "Selected Exercises from Microbes in Action by Seeley and Van Demark.

Students should read each exercise before coming to the lab. There may be a prelab quiz before the lab. The lab schedule is tentative and may be modified

Laboratory Exercises will be done in the following order:

1. Experiments 5 and 6 (Asceptic Transfer of Bacteria into broth and agar slants)

Click here to understand how bacterial colonies with pigments can be told apart.

1. Use of the Microscope

Click here to understand the history of the microscope

1. Experiment 1 (Examination of stained cells under oil immersion).


2. Experiment 10: Direct Staining with Basic Dyes

2. Handout will be provided for Negative Staining.

3. Experiment 11: The Gram Stain (Differentiating between bacterial types)

  Click for help with EXAMINATION AND INTERPRETATION Of Gram Stains                                 
3. Experiment 12:(Only Endospore Stain part).

4. Experiment 27: Carbohydrate Degredation

Click here to show lab results from last years Carbohydrate fermentation tests.

4. Handout on Lipid Hydrolysis

5. Experiment 28 Degredation of Proteins and Amino Acids

Click here to see an example of milk reactions from various bacteria

6. Experiment 17: Osmotic pressure lab handout

Click here to see the effect of salt on bacterial growth as seen in last years lab.

6. Experiment 7: Separating Mixed Cultures into Pure Cultures. Pour Plate and Streak Plate techniques.

Click on this line to view lab results from last years classes






6. Experiment 30: Catalase Activity -Parts A and B.

7. Experiment 14: Quantitative Plating Methods:Determination of Microbial Numbers: Pour Plate method. (p. 84 in Manual. Read preceding pages).



8. Experiments 18 Effects of Temperature and 19 Energy Sources and Buffers, also pH of broth and effect on bacterial growth.

8. Experiments 21 and 22: Oxygen and Microbial Growth and Culture of Anaerobic Bacteria

9. Experiment 40 Coliform Standard Analysis of Local Water


Click here to learn how to tell the difference between E. coli and Enterobacter aerogenes in the lab.

10. Experiment 40 continued.

10. Experiment 23 Antiseptics, Disinfectants and Fingerprint Plates (Handout)

11.Experiment 51 Antibiotics Read Experiment 9 and the textbook section on sterilization. Handout UV light

12. Transformation Experiment (Handout) LAb test #1/ Notebooks Due

13. Plasmid Prep(Handout)

14. Plasmid Identification(Handout) Also Acid-fast and capsule stainng

15. Plasmid Identification(continued).Review unknown procedure

16. Unknkowns.

17. Unknowns.

18.HIV Simulation. Unknowns.

19. Unknowns.

20. Unknowns.

21. Lab Test #2/Unknowns Due. Immunology Experiment(Handout).

22. An Antibody ID Test: Staph Latex Test .

22. ELISA (Handout)

22. Group Lab projects

22-29 Work on Lab Projects

23-25. Lecture Presentations(first 50 minutes) and Work on Lab projects.

26-27 Present Lab Projects

28. Lab Final