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BIOL 239 Experimental Microbiology
Dr. Joan Slonczewski
with Darcy Blankenhorn

Spring Semester 2007, HIG 322
Thurs. 1:10-4:00; Fridays as needed


Microbiology is the study of organisms too small to be seen by the naked eye. In this experimental lab course, we observe bacteria, protists, and archaea. Our experimental approaches include:
  • Microscopy of live and stained organisms from human and environmental sources
  • Culturing and biochemistry, using state-of-the-art digital instrumentation
  • PCR molecular genetic analysis and bioinformatic taxonomy
  • Clinical methods to identify potential pathogens from food
Prerequisite courses. BIOL 109 or a chemistry lab. BIOL 238 must be taken concurrently.

Lab hours. Lab starts in HIG 322 Thursday at 1:10. Followup for microbial growth requires work on Fridays.

All lab procedures must be read before the day the exercise is performed. All lab exercises must be turned in on the date indicated.

Text: Leboffe, M. J., and Burton E. Pierce, Microbiology Laboratory Theory and Applications, 2E, Morton, 2006. The lab manual provides background reading, to be read before lab.
Handouts will be provided for each lab. Always check the blackboard in class for any additions or modifications.

Lab reports. All pages must be stapled. Do not redraw sketches; use pencil on un-lined paper. Each lab report must show all results, including those of your lab partner(s). Always cite the names of all your lab partners. You are encouraged to discuss results with your fellow students, and cite their assistance (as professional scientists do) but the text and graphics of your report must be your own work. Lab reports are due promptly as noted in the syllabus, and they will be graded and returned promptly.

Evaluation. Your final grade is based on lab reports:
Labs 1-4 (10% each); Lab 5 & 7 (15% each); Lab 6 (30%).
Each report must be word-processed and proof-read, with Introduction, Methods, Results, and Discussion.

Attendance. All missed labs will count against your grade. Lab attendance is 100% absolutely required. If you have a sports conflict, you must inform the instructor in writing a week before the lab date. In some cases, a lab partner may be able to help complete the procedures. No labs can be "made up." A missed lab results in final grade F for the course.

Withdrawals. Passing this course assumes 100 % participation up to and including the final lab.
The instructor of this course does NOT sign forms for Withdrawal Passing (WP) or Withdrawal Late (WL). This lab has a long waiting list; make sure you intend to complete the course.


BIOL 239 Syllabus
Date
Topic
Reading
Report Due
Jan
18
19
Lab 1. Visualizing eukaryotes and bacteria. Pour plates.
Complete observations as needed.
Lab 1
Jan
25
26
Lab 2. Throat Culture: streak plate & Gram Stain
Complete as needed. Throat Slide Photos
Lab 2
Lab 1
Feb
01
02
Lab 3. Growth and temperature.
Growth calculations.
Lab 3
Lab 2
Feb
08
09

Lab 4. Metabolism
Observe tubes and plates.

Lab 4 Lab 3
Feb
15

16

Lab 5.  Halobacteria.
5:00 Middle School Science Fair -- Extra Credit
Continue Lab 5

Lab 5
Lab 4
Feb
22
23
Continue Lab 5
Complete Lab 5
 
Mar
01
Lab 6. Isolate. Field Trip to Knox Community Hospital
4:15 Corien Bakermans, Biology Seminar
Lab 6
Haloarchaea
SPRING VACATION
Mar
22
23
Lab 5. Haloarchaea, continue; Lab 6. Identify, continue.
Continue as needed
 
Mar
29
31
Lab 6. Environmental Bacteria: DNA prep. Lab 5. Continue
Continue as needed
 
 
Apr
05
06
PCR amplification.
Gel electrophoresis--Send out DNA for sequencing
  Lab 5
Apr
12
13
Physiology tests; Enterotube; ENTERIC program
Continue
   
Apr
19
20
DNA sequence from PCR: Analyze results--Blast
Followup physiology tests
 
Apr
26
Lab 6 Presentations  

May
03
Lab Cleanup. Field Trip to Water Treatment Plant
 
Lab 6

Academic Honesty. All rules and standards stated in the Student Handbook apply.You must cite the source of all information obtained from another source, including your lab partner and other students.
Learning Disabilities. The Coordinator of Disability Services must be consulted for special arrangements.


Laboratory Safety Rules

  • The purpose of these rules is to keep you and your fellow students safe and healthy.Remember that in a microbiology lab, any microorganism is considered a potential pathogen.Observance of safety rules will be a factor in your lab grade. 
     
  • Know the location of the fire extinguisher, emergency shower and first aid kit.
     
  • Remember to assume that any microbe is a potential pathogen.  There is no mouth pipetting in microbiology lab; use the pipettors.Smoking, eating, drinking and chewing gum are not allowed in the lab.
     
  • Read the day’s procedure for the lab exercise and the appropriate report pages before you come to class.
  • Before the lab period begins, check the lab blackboard for any modification of your procedure.Wait for the instructor to arrive before beginning work.
  • Protect your microscope.Always carry with both hands; grasp the arm with one hand, and support the base with the other hand.Keep your microscope covered when not in use. Never remove or exchange eyepieces with other microscopes. Avoid excess immersion oil. Always clean oil off lenses and slides when you are finished. Use only lens paper with 70% ethanol to clean lenses; blot, not rub.
  • Do not pour liquefied agar medium down the sink drain, as it will cool and gel in the pipes.  Do not pour any contaminated media down the drain; instead, leave it in the prep room for autoclaving and safe disposal.
  • Your lab area must be left clear and disinfected with ethanol before you leave the lab.  Hang up your lab coat before you leave the lab.
  • Always bring a friend when working in the lab after 5:00 pm or on weekends.