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bio lab report
The Variation of Yeast Cells When Adding an Antibiotic
Biology 1401- A

October 21, 2013
Abstract. -- The main focus in this experiment was to find out if antibiotics affect yeast cells culture when added. The observation of the two cultures along with the yield of yeast cell reproduction between the two cultures was the sole purpose of the experiment; culture-A (- antibiotic) and culture-B (+ antibiotic). Our hypothesis stated whether antibiotic effects yeast cells cultures. This theory was tested by having a chamber with quadrants that contain the culture, a hemacytometer, was used to carry out this experiment. After the data was collected from using the hemacytometer, the results of the difference between the two cultures was to be determined through a t-test. As the test was conducted, the study shows that the difference between lacking an antibiotic and containing one is not different. An antibiotic in culture-A and culture-B does not affect the number of yielded yeast cells.
Introduction. -- It is undetermined whether or not antibiotics effect yeast cells reproduction. It has been hypothesized that antibiotics decrease the yield of yeast cells. This statement above is misinforming because antibiotics are used to kill bacteria, and yeast are not bacteria. Bacteria are prokaryotic while yeast, Saccharomyces cerevesiae, is eukaryotic. Yeast is used for fermentation to produce alcohol, and as well as to help give bread its shape (formation). Antibiotics have the same effect on both yeast and bacteria although they do not have the same structure. The experiment was carried out to compare the growth of cells in two different yeast cultures; culture-A lacked the antibiotic and culture-B contained the antibiotic.
Materials and Methods. -- To conduct this experiment there must be the following; a hemacytometer, a Pasteur pipette, and a compound microscope. A hemacytometer is a counting chamber to count the number of cells in a known volume. Pasteur pipettes

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