Throughout the previous modules you have gained information on the methods used to distinguish different bacteria from one another. This activity serves to reinforce the concepts associated with biochemical tests, help you learn the metabolic strategies associated with individual or groups of bacteria, and strengthen your understanding of basic morphological differences. For this assignment, you are to choose one (1) of the groups,either A) oral/respiratory tract pathogens and commensals, or B) urogenital pathogens and commensals or C) gastrointestinal tract pathogens and commensals, and develop a key based on differential staining and culturing, morphology and the suite of biochemical tests available to identify bacteria.
A) Typical oral/respiratory tract pathogens and commensals –
| Streptococcus pneumonia | Yersina pestis |
| Haemophilus influenza | Streptococcus viridans |
| Staphylococcus aureus | Bacillus antracis |
| Klebsiella pneumonia | Bordetella pertussis |
| Streptococcus pyogenes | Chlamydia pneumonia |
| Psuedomonas aeruginosa | Mycobacterium tuberculosis |
| Mycoplasma pneumoniae |
B) Typical urogenital pathogens and commensals
| Neisseria gonorrhoeae | Streoticiccus agalactiae |
| Staphylococcus saprophyticus | Clostridium perfringens |
| S. pyogenes | Haemophilus vaginalis |
| Ureaplasma urealyticum | Treponema pallidum |
| Chlamydia trachomatis | Serratia marcescens |
| Trichomonas vaginalis |
C) Typical gastrointestinal pathogens and commensals –
| Campylobaacter jejuni | Enterobacter faecalis |
| Salmonella typhimurin | Shigella sonnei |
| Escherichia coli | Bacillus cereus |
| Clostridium perfringens | Vibrio cholerae |
| C. dificile | Helicobacter pylori |
| Alcaligenes faecalis | Listeria monocytogenes |
