Lab Exercise 2: Microscopes and Cell Shapes

The video tutorial covers the operation of a compound light microscope, explaining its parfocal and paracentric properties. It details the parts of the microscope, including the ocular and objective lenses, condenser, diaphragm, and focus mechanisms. The tutorial also explains magnification calculations and introduces common bacterial shapes like bacilli and cocci.

What does the term 'parfocal' mean in relation to microscopes?

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Explain the difference between parfocal and paracentric microscopes.

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List the main parts of a compound light microscope that are important for its functionality.

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What is the function of the diaphragm in a microscope?

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Explain the role of the mechanical stage in a microscope.

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What are the different types of objective lenses and their respective magnifications?

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What is the significance of the oil immersion lens in microscopy?

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Describe how to calculate the total magnification of a microscope.

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What are the three common shapes of bacteria mentioned in the text?

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How do bacilli and cocci differ in shape?

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