Prokaryotic Microbes

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Introduction The purpose of this lab was to determine the size of prokaryotic microbes in comparison to eukaryotic cells. Students used oil immersion microscopy to magnify the microbes and compare their size to that of a eukaryotic cheek cell. The results of this lab allowed students to compare and contrast eukaryotic and prokaryotic cell size, which is a necessary skill when working with microbiology based labs. Microbiology is the study of microscopic organisms, also known as microbes. Microorganisms include bacteria, fungi, protists, and autotrophic organisms. Viruses, although not an organism, are often included in the study of microbes. In this lab, three types of bacteria; bacillus, spirillum, and coccus; were observed and compared to eukaryotic cheek cells. This research question successfully related to students’ classroom lectures about the topic of microbiology. Comparing the size of prokaryotic microbes to eukaryotic cells gave students a better understanding of the classification of organisms, including the three domains as well as the six kingdoms, and the relative size and structural characteristics of each classification. Observing and illustrating the sizes and shapes of the microbes also provided students with a real life application of the shapes and arrangements of bacteria, which were discussed in class. Many previous experiments have worked with microbes because although microbes are invisible to the naked eye, when they are magnified, they introduce a world of bacteria that influences much of life. Robert Hooke was the first person to discover cells in 1660. Just sixteen years later, in 1676, Leeuwenhoek became the first scientist to discover microorganisms. Leeuwenhoek observed and described microscopic bact... ... middle of paper ... ... Life Sciences." Google Books. N.p., n.d. Web. 07 Feb. 2014. "Membranes Organize Cellular Complexity." Membranes Organize Cellular Complexity. N.p., n.d. Web. 07 Feb. 2014. . "Microbe Passports." Microbiology Online. N.p., n.d. Web. 07 Feb. 2014. . "Microbes and the Human Body." Microbiology Online. N.p., n.d. Web. 07 Feb. 2014. . Microbiology Lab Manual. N.p.: n.p., n.d. Print. "Prokaryotic and Eukaryotic Cells." Prokaryotic and Eukaryotic Cells. College of DuPage, 9 Sept. 2004. Web. 06 Feb. 2014. "Size of Microbes." Boundless. N.p., n.d. Web. 07 Feb. 2014. .
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