mm) of a cell that is 7 r.u. across? Show work for full credit lace, 10 reticle

Question

mm) of a cell that is 7 r.u. across? Show work for full credit lace, 10 reticle units (r.u.) equal 0.1mm. What is the diameter (in 13. On a microscope with a 40x objective in place, 10 reticle units (r.u) equal 0.025mm. What is the diameter (in mm) of a cell that is 34 r.u. across? Show work for full credit. 14. For the cells described in #12 and #13, calculate which one has the larger volume and show work for full credit. 15. In the anatomy class you are taking, a lab instruction calls for drawing a specimen at a total magnification of 400s Wirh a microscope equipped with a 10x ocular eyepiece, what objective should you be using?

Explanation / Answer

10 r.u. = 0.025 mm => 1 r.u. = 0.025/10 = 0.0025 mm

Diameter of the cell is 34 r.u. = 34 x 0.0025 mm = 0.085 mm.

Microscope magnifies it by x40.

Then actual diameter of cell = 0.0825/40 mm = 0.00212 mm.

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