Saturday, April 24, 2010

HELP! What are the similarites and differences of yeast and bacteria on solid media and under the microscope?

regarding their appearance. Thanks for your help guys.

HELP! What are the similarites and differences of yeast and bacteria on solid media and under the microscope?
it really depends on what bacteria it is





why don't you try googling some images for yeast, and the bacteria you will be viewing


for example here is a picture of what yeast looks like http://biology.clc.uc.edu/fankhauser/Lab...
Reply:I hope you already understand that there are numerous different bacteria and yeast and that there are also numerous different and often very specific growth conditions for each organism. Many different bacteria grow very well in and on the human body but not many different yeast grow very well in those same anatomic areas.





However, if a yeast such as Candida albicans grew next to a bacterial colony such as Staphylococcus epidermidis, the colonies would look rather similar on some media. A beginner could confuse the two types but an experienced microbiologist would quickly notice minor but important differences. Other bacteria would look quite different from both Staphylococcus and that particular yeast. Many yeasts will not grow on the same media as bacteria, so they would be completely overlooked. Still, in general bacterial and yeast colonies could look similar to each other.





They differ significantly microscopically. Bacterial cells are generally much smaller and usually require higher magnification and special staining to acurately describe them. Many yeasts will not stain with typical bacterial stains but they are large enough to observe with lower magnifications and often do not need to be stained in order to observe them. Beyond that, I'd say you need to dig into your microbiology text and study. The answer is much larger than can be described until you have studied much, much more.


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