Rio Salado BIO101 lab 3 part 2
Subject: Biology / General Biology
Question
1. 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)–Answer below:
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2 List two jobs where microscopes are used. Describe in what capacity.
3. Why is special paper used to clean the lenses of a microscope?
4. State the name of each of the tagged parts on the microscope shown above.
5. What type of microscope has primarily been used in this lab
6 State the function of the following parts of the microscope: (3 points) A. iris diaphragm B. ocular lens C. condenser
State how to adjust each of the following components of the microscope (2 points) A. diopter B. interpupillary distance
8 What is the total magnification when using a compound light microscope with an objective lens of 10X and an ocular lens of 4X? Show the calculation used to derive the answer.
9. Why are coverslips used to observe specimens under the microscope?
10 Letter “e” exercise: A. Describe what happens to a letter “e” when placed under the microscope. How does this compare to its appearance in the newspaper? (2 points) B. 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 10X. With the 10X magnified it made the specimen close enough to see the colors the 40X over magnified the slide.
12. What differences did the student observe in the various tissues/organelles of the stained, prepared slides? (2 points)—
13. Why don’t all cells demonstrate the presence of all intracellular structures? (3 points) –Answer below
14. Describe what the student sees as some major differences between cells from the kingdom Plantae and Animalia. Propose some reasons why these anatomical differences may exist. (5 points)–Answer below:
15. (Application) How might the information gained from this lab pertaining to the microscopes be useful to the student, or how can the student apply this knowledge to everyday life as a non-scientist?
