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LAB REPORT

Morphological Unknown Lab Report
Introduction:
There are many types of microorganisms in the world that may seem alike but are very
different in function and purpose. That is why when one has to find what an unknown
organism is he or she sees that its difficult to classify it based on its outer
appearance. That is why there are many ways in order to classify microorganisms under
microscopes. Two of the ways to identify microorganisms are by looking at the colony and
cell morphologies or by conducting a series of stain procedures on the microorganisms. A
colony is a mass of microbial cells (Colome, Ex6:28). Morphology is the colony's
structure and form. There are six parameters used to describe a colony's morphology:
overall appearance, colony margin (edge), elevation, size, pigmentation, and consistency
(Colome, Ex6:28). Although colony morphology isn't the best way to identify
microorganisms, it's helpful in recognizing some types. The other more efficient way to
identify microorganisms is by staining them. A stain is used to color a microorganism and
its background. On September 25, 2000, each microbiology lab student was given an unknown
microorganism and was told to use series of staining procedures to identify his/her
unknown organism. The identification key on page 61b of the microbiology lab manual was
used in identifying the unknown organisms.