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Bio156 lab 3




Question;What type of microscope would be used in the laboratory;to observe very small objects or organisms on a slide? Please give;reasoning behind the answer. Which microscope would be useful when;studying the internal structure of a minute specimen? (2 points)List two jobs where microscopes are used. Describe in;what capacity they are used. (2 points)Why is a special paper used to clean the lenses of a;microscope? (1 point)State the name of each of the tagged parts on the;microscope shown above in Step 1 of the Procedures: (11 points)What type of microscope has primarily been used in this;lab? (1 point)State the function of the following parts of the;microscope: (3 points)Iris diaphragmOcular lensCondenserState how to determine the following functions of the;microscope (2 points)DiopterInterpupillary distanceWhat is the total magnification when using a compound;microscope with an objective lens of 10X and an ocular lens of 4X? Show;the calculation used to derive the answer. (2 points)Why are coverslips used to observe specimens under the;microscope? (1 point)Letter "e" exercise:Describe what happens to a letter "e" when;placed under the microscope. How does this compare to its appearance in;the newspaper? (2 points)If the slide is moved to the right with the mechanical;stage, what direction does the specimen move while observing it under the;microscope? (1 point)Colored threads exercise:Under what magnification was the sequence of colors;most clearly seen? Propose a reason why this might be. (2 points)What differences did the student observe in the various;tissues/organelles of the stained, prepared slides? (2 points)Why don't all cells demonstrate the presence of all;intracellular structures? (3 points)Describe what the student sees as some major;differences between cells from kingdoms Plantae and Animalia. Propose some;reasons why these anatomical differences may exist. (5 points)(Application);How might the information gained from this lab pertaining to the;microscopes be useful to a student employed in a healthcare related;profession? (10 points)v


Paper#63220 | Written in 18-Jul-2015

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