cytology

LECTURE OBJECTIVES
?define the term “limit of resolution”.
?explain why electron microscopes are capable of finer resolution than light microscopes
?draw a simplified diagram of a cell, clearly labelling those ultrastructural components common to eucaryotic animal cells.
?State how a cell functions by describing the structure and function of the following cell components and organelles:
?membranes (bilipid)
?plasmamembrane
?glycocalyx
?Nucleus
?nucleolu s
?Cytoskeleton
?smooth endoplasmic reticulum?State how a cell functions by describing the structure and function of the following cell components and organelles:
?membranes (bilipid)
?plasmamembrane
?glycocalyx
?Nucleus
?nucleolu s
?Cytoskeletonexplain why electron microscopes are capable of finer resolution than light microscopes
Limit of Resolution wavelength (?) (ie Resolution improves as ? decreases)
?Visible light: Violet ? = 0.4 ?m Deep red ? = 0.7 ?m
?Electron (at 100,000V acceleration) ? = 0.004nm
?Theoretical Limit of Resolution
? for light microscope is 0.2 ?m
? for electron microscope is 0.002 nmexplain why electron microscopes are capable of finer resolution than light microscopes
Limit of Resolution wavelength (?) (ie Resolution improves as ? decreases)
?Visible light: Violet ? = 0.4 ?m Deep red ? = 0.7 ?m
?Electron (at 100,000V acceleration) ? = 0.004nm
?Theoretical Limit of Resolution
? for light microscope is 0.2 ?m
? for electron microscope is 0.002 nm
?smooth endoplasmic reticulum?State how a cell functions by describing the structure and function of the following cell components and organelles:
?membranes (bilipid)
?plasmamembrane
?glycocalyx
?Nucleus
?nucleolu s
?Cytoskeleton
?smooth endoplasmic reticulum