Microscopy

mPSGMign
definition
amicroscopeisaninstrumentthatmagnifies
objectsotherwisetoosmalltobeseenproducing
animageInwhichtheobjectappearslarger
thOstphotographsofcellsaretakenusingamicro
scopeandthesepicturescanalsobecalled
micrographs
simpleus
compound
magnifyingglassesdoqualifyasmicro
scopes sincetheyonlyhaveonelensthey
arecalledsimplemicroscopes thefancier
Instrumentsthatwetypicallythinkofas
microscopes arecompoundmicroscopes
meaningthattheyhavemultiplelenses
becauseofthewaytheselensesare arr
magnification anged theycanbendlighttoproducea
AND muchmoremagnifiedimagethanthatof
resolution amagnifyingglass
twoparametersareespeciallyimportantinmicroscopymagnificationandresolution
magnificationisameasureofhowmuchlargeramicroscope orsetoflenseswithina
microscopecausesanobjecttoappear
mforinstancethelightmicroscopestypicallyusedinhighschools colleges
magnifyuptoabout400xactualsizesosomethingthatwas1mmwide
inreallifewouldbe400mmwideinthemicroscopeimage
theresolutionofamicroscopeorlensisthesmallestdistance
bywhichtwopoints
canbeseperatedtstillbedistinguishedasseparateobjectsthesmallerthisvaluethe
highertheresolvingpowerofthemicroscopeandthebettertheclarity detailofthe
image
UH iftwobacterialcellswereveryclosetogetherononesidetheymight
looklikeasingleblurrydotonamicroscopew1lowresolvingpower
butcouldbetoldapartasseparateonamicroscopew highresolving
power