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| 1. |
observe and identity the following microorganisms describe each of them with their structure, habitat, mode of nutrition, etc. |
| Answer» <html><body><p>Explanation:Most microbes are unicellular and small <a href="https://interviewquestions.tuteehub.com/tag/enough-446095" style="font-weight:bold;" target="_blank" title="Click to know more about ENOUGH">ENOUGH</a> that they require artificial magnification to be seen. However, there are some unicellular microbes that are visible to the naked eye, and some multicellular <a href="https://interviewquestions.tuteehub.com/tag/organisms-587658" style="font-weight:bold;" target="_blank" title="Click to know more about ORGANISMS">ORGANISMS</a> that are microscopic. An object must measure about 100 micrometers (µm) to be visible without a microscope, but most microorganisms are many times smaller than that. For some perspective, consider that a typical animal cell measures roughly 10 µm across but is still microscopic. Bacterial cells are typically about 1 µm, and viruses can be 10 times smaller than bacteria (Figure 1). See Table 1 for units of length used in microbiology. A bar along the bottom indicates size of various objects. At the far right is a from egg at approximately 1 mm. To the left are a human egg and a pollen grain at approximately 0.1 mm. Next are a standard <a href="https://interviewquestions.tuteehub.com/tag/plant-1155789" style="font-weight:bold;" target="_blank" title="Click to know more about PLANT">PLANT</a> and animal cell which range from 10 – 100 µm. Next is a red blood cell at just under 10 µm. Next are a <a href="https://interviewquestions.tuteehub.com/tag/mitochondrion-1098551" style="font-weight:bold;" target="_blank" title="Click to know more about MITOCHONDRION">MITOCHONDRION</a> and bacterial cell at approximately 1 µm. Next is a smallpox virus at approximately 500 nm. Next is a flu virus at approximately 100 nm. Next is a polio virus at approximately 50 nm. Next are proteins which range from 5-10 nm. Next are lipids which range from 2-5 nm. Next is C60 (fullerene molecule) which is approximately 1 nm. Finally, atoms are approximately 0.1 nm. Light microscopes can be used to view items larger than 100 nm (the size of a flu virus). Electron microscopes are useful for materials from 1.5 nm (larger than an atom) to 1 µm (the size of many bacteria). Figure 1. The relative sizes of various microscopic and nonmicroscopic chart?</p></body></html> | |