Question

identify three unknown microbes from a set of 12 possible organisms using morphology and metabolic characteristics.

These are the names.

Names of Possible Unknown Organisms

1. Escherichia coli
2. Enterobacter aerogenes
3. Proteus hauseri (or P. vulgaris)
4. Alcaligenes faecalis
5. Klebsiella pneumonia
6. Staphylococcus aureus
7. Staphylococcus epidermidis
8. Enterococcus (Streptococcus) faecalis
9. Kocuria rhizophila (or Micrococcus luteus)
10. Bacillus subtilis
11. Corynebacerium xerosis
12. Bacillus cereus In order to identify unknown organisms from the list of twelve bacteria, you will need to develop three dichotomous keys, one for each of the following groups of bacteria: These are the names:   

    1) Gram-Negative Bacilli

    2) Gram-Positive Cocci

    3) Gram-Positive Bacilli

Answer 1

Gram- Gram-positive cocci Gram-positive bacilli negative bacilli Escherichia coli Enterobacter aerogenes P.vulgaris Staphylococcus Enterococcus aureus faecalis Staphylococcus Bacillus subtilis epidermidis Kokuria Corynebacerium rhizophila xerosis Bacillus cereus Alcaligenes faecalis Klebsiella pneumoniae