PORTAGE BIOD 171 M3 EXAM WITH VERIFIED
SOLUTIONS
1.Nanometer d( ddefinition): d10-9 dor done-billionth dof da dmeter
2.
3.Micrometer d(definition): d10-6 dor done-millionth dof da dmeter
4.2 dcritical dfactors dthat dinfluence dyour dability dto dsee dan dobject:
dResolution dand dcontrast
5.Difference dbetween dresolution dand dcontrast: dresolution drefers dto dthe
ddistance dbetween dtwo dor dmore dobjects dat dwhich dthey dcan dstill dbe
dseen das dseparate. dcontrast dis dthe ddifference din dlight dabsorbance
dbetween dtwo dor dmore dobjects.
6.if dyou dincrease dthe dlight dgoing dinto da dmicroscope, dwhat dpart
dwould dyou dadjust?: dthe diris ddiaphragm
7.as dlight dpasses dthrough da dmicroscope, dwhat dis dthe dlast dpiece dthat
dlight dpasses dbefore dreaching dyour deyes?: docular dlens d(eyepiece)
8.How dis dtotal dmagnification dcalculated?: dMultiply dthe docular dlens
d(10x) dby dthe dobjective dlens
9.one dlimitation dto dfixing da dsample?: dfixation drequires dyou dto dkill dyour
dsample. dthis dmakes ddetermining dmotility dof da dsample dimpossible.
dFixation dcan dalso ddistort dthe dspecimen dshape dand darrangement
10. The dbenefit dof dphase-contrast dmicroscopy dis dthat dit:: dit dprovides
ddetailed dimage dof dlive dcells dwithout dstaining
11.Distinguishing dFeatures dof ddark dfield dmicroscopy: dexceptionally ddark
1 d/
d1
SOLUTIONS
1.Nanometer d( ddefinition): d10-9 dor done-billionth dof da dmeter
2.
3.Micrometer d(definition): d10-6 dor done-millionth dof da dmeter
4.2 dcritical dfactors dthat dinfluence dyour dability dto dsee dan dobject:
dResolution dand dcontrast
5.Difference dbetween dresolution dand dcontrast: dresolution drefers dto dthe
ddistance dbetween dtwo dor dmore dobjects dat dwhich dthey dcan dstill dbe
dseen das dseparate. dcontrast dis dthe ddifference din dlight dabsorbance
dbetween dtwo dor dmore dobjects.
6.if dyou dincrease dthe dlight dgoing dinto da dmicroscope, dwhat dpart
dwould dyou dadjust?: dthe diris ddiaphragm
7.as dlight dpasses dthrough da dmicroscope, dwhat dis dthe dlast dpiece dthat
dlight dpasses dbefore dreaching dyour deyes?: docular dlens d(eyepiece)
8.How dis dtotal dmagnification dcalculated?: dMultiply dthe docular dlens
d(10x) dby dthe dobjective dlens
9.one dlimitation dto dfixing da dsample?: dfixation drequires dyou dto dkill dyour
dsample. dthis dmakes ddetermining dmotility dof da dsample dimpossible.
dFixation dcan dalso ddistort dthe dspecimen dshape dand darrangement
10. The dbenefit dof dphase-contrast dmicroscopy dis dthat dit:: dit dprovides
ddetailed dimage dof dlive dcells dwithout dstaining
11.Distinguishing dFeatures dof ddark dfield dmicroscopy: dexceptionally ddark
1 d/
d1
