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Biology · Studypool

Lab questions

Post ID: 3221222

Assignment Content

  1. Question 1

    0.68 PointsQuestion 1 pg3: When you rotate the coarse adjustment knob, does the stage move or do the nosepiece and objective move?

  2. Question 2

    0.68 PointsQuestion 2 pg3:a. How is the ‘e’ orientated in the view through the microscope? Upside-down or right-side up?

  3. Question 3

    0.68 PointsQuestion 2 pg3:b. How does the image move when the slide is moved to the right or left? Up or down?

  4. Question 4

    0.68 PointsQuestion 2 pg3:b. How does the brightness of the view change when you go from lower to higher power?

  5. Question 5

    0.68 PointsQuestion 2 pg3:d. Does the light path from the objective of your microscope travel in a straight line, or is it bent by a prism to direct light to the ocular?it is bent by prism to direct light to the ocular

  6. Question 6

    0.68 PointsProcedure 1.2 pg3 2. Calculate the total magnification using the following formula: Magtot =Magobj x Magocu where:Magtot = total magnification of the imageMagobj = magnification of the objective lensMagocu = magnification of the ocular

  7. Question 7

    0.68 PointsQuestion 3 pg3:a. How many times is the image of the ‘e’ magnified when viewed through the high-power objective of your microscope?

  8. Question 8

    0.68 PointsQuestion 3 pg3:b. If you didn’t already know what you were looking at, could you determine at high magnification that you were looking at the letter ‘e’? How?

  9. Question 9

    1 PointComplete and attach Table 1.1 Dimensions of the Field of View (FOV) at Three Magnifications to the ADDITIONAL CONTENT section at the bottom of this assignment. Instructions included in Procedure 1.3 on page 4 questions 1-11Yes, my picture is attached to the ADDITIONAL CONTENT section at the bottom of this assignment .No, I failed to attach a picture of table 1.1

  10. Question 10

    0.68 PointsQuestion 4 pg4:a. Why was the plastic ruler unsuited to directly measure the diameter of the FOV at higher magnification?

  11. Question 11

    0.68 PointsQuestion 4 pg4:b. Which provides the largest field of view, the low- or high-power objective?

  12. Question 12

    0.68 PointsQuestion 4 pg4:c. How much area can you see with the 4x objective than with the 40x objective?

  13. Question 13

    0.68 PointsQuestion 4 pg4:d. Why is it difficult to locate an objective starting with the higher-power objective?

  14. Question 14

    0.68 PointsQuestion 4 pg4:e. Which objective should you use to initially locate the specimen?

  15. Question 15

    0.68 PointsQuestion 5 pg5:a. Are all three threads in focus at low power?

  16. Question 16

    0.68 PointsQuestion 5 pg5:b. Can all three threads be in focus at the same time using the high-power objective?

  17. Question 17

    0.68 PointsQuestion 5 pg5:c. Which objective provides the greatest depth of field, high or low power?

  18. Question 18

    0.68 PointsQuestion 6 pg5:a. Approximately how long is a water flee?

  19. Question 19

    0.68 PointsQuestion 6 pg5:b. Why is it important to put a coverslip over the drop of water when you prepare a wet mount?to stable the substance and the

  20. Question 20

    0.68 PointsComplete sketches of the different organisms you see in wet mount cultures in a similar manor to Figure 1.3 Common organisms found in pond water. Attach a picture of your drawings with each magnification in the ADDITIONAL CONTENT section at the bottom of this assignment. This should include drawings from the light microscope and dissecting microscope. Yes, my picture is attached to the ADDITIONAL CONTENT section at the bottom of this assignmentNo, I failed to attach my sketches.

  21. Question 21

    0.68 PointsQuestion 7 pg7:a. What is the area of the FOV when you use the lowest magnification of your dissecting microscope?

  22. Question 22

    0.68 PointsQuestion 7 pg7:b. What is the area when you use the highest magnification?

  23. Question 23

    0.68 PointsComplete the table on the bottom left of page seven comparing only the magnification and size of the field of view of a dissecting microscope to a compound microscope.
    Dissecting/ Compound:Magnification Blank 1 / Blank 2Size of FOV Blank 3 / Blank 4
    • Blank 1
    • Blank 2
    • Blank 3
    • Blank 4

  24. Question 24

    0.68 PointsQuestion 7 pg7:d. How does the direction of the illumination differ between dissecting and compound microscopes?

  25. Question 25

    0.68 PointsQuestions for Further Thought and Study pg8:
    1. What is the function of each major part of a compound and dissecting microscope?

  26. Question 26

    0.68 PointsQuestions for Further Thought and Study pg8:2.What are the advantages of knowing the diameter of the field of view?

  27. Question 27

    0.68 PointsQuestion for Further Thought and Study pg8:3.Why must specimens viewed with the compound microscope be thin? Why are they sometimes stained with dyes?

  28. Question 28

    0.68 PointsQuestions for Further Thought and Study pg8:4.What are the advantages and disadvantages of using a compound microscope as compared to a stereoscopic microscope?

  29. Question 29

    0.68 PointsQuestions for Further Thought and Study pg8:5.Why is depth of field important for studying biological structures?