How can observations about the morphologies facilitate

Reference no: EM133204625

Problem: Colonial Morphology and Cellular Morphology

Cellular observations should be made under oil immersion. Observe and describe the cellular size, shape and arrangement of your specimen. Helpful hints: The arrangement is the one that seems most prevalent. It is not unusual to see two or more arrangements on any given slide. On oil immersion a single unit of your ocular micrometer is equal to 1 um.

Diagram a representative arrangement of the cells from the colony you selected in the space provided. Measure the diameter and/or length of the cells examined. It is helpful to measure several individual cells and then determine an average size or a size range. Measure at least 10 cells to make these determinations.

1498_Simple Stain.jpg

Task

A. Distinguish between colonial morphology and cellular morphology.

B. Do you expect that different organisms will vary in these characteristics?

C. How can observations about these morphologies facilitate identification of a specific organism?

D. Heat fixing the smear before staining has three functions. Name all of them.

E. Describe the properties of the stain and the bacterial cell which cause the stain to adhere to the cells.

Reference no: EM133204625

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