Introduction to Cells

Introduction to Cells - Introduction to Cells Topic2:...

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Introduction to Cells Topic 2: Investigating Cells Standard Grade Biology
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Magnification Cells can be seen more clearly using Microscopes _________________________ the cells Microscopes may have two or three__________________________________________ and one ___________________________________________. microscopes objective lenses magnify eyepiece lens
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Calculating Magnification To work out Total Magnification use the following formula TOTAL = x MAGNIFICATION magnification of eyepiece lens magnification of objective lens
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Since microscopes magnify cells we have a new unit of measurement. These new units are called _________________________. 1mm = 1000 µm 1 = 1 µm 1000 microns
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Measuring Cell Size We can use microscopes to estimate the size of cells we are looking at e.g. if we know the diameter of the field of our field of view we can then estimate the size of the cells
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a)if the field of view = 1mm then onion cells are ______________ mm or ______________(µm) in length 1mm (1000 µm) Field of view Onion cell 0.5 500 microns
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This note was uploaded on 11/07/2011 for the course BIOLOGY 100 taught by Professor Staff during the Winter '08 term at BYU.

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Introduction to Cells - Introduction to Cells Topic2:...

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