Bio156 lab 3
Question # 00003797
Posted By:
Updated on: 11/20/2013 02:42 PM Due on: 11/27/2013
- 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 diaphragm
- Ocular lens
- Condenser
- State how to determine the following functions of the microscope (2 points)
- Diopter
- Interpupillary distance
- What 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
-
Rating:
5/
Solution: bio156 lab 3