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Bio_160_Lecture2

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Subject: 
Biology
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Tags: 
Biology
organelles
Membrane biology
Cell Biology
Endomembrane system
Cell membrane
Cellular compartment
cell
Vesicle
Endoplasmic reticulum
Biological membrane
mitochondrion
health

Cells, Membranes and Cellular Reproduction A Tour of the Cell ? Cell Structure & Function ? Chapter 4 ? Compared to the images generated by the Hubble telescope or the planetary probes like Voyager, telescope images are limited. ? Same with looking at cells under a light microscope, view is limited. ?Which of the following cell parts are visible under a light microscope? ? Cell membrane - yes. ? Large macromolecules - no. ? Microtubules - no. ? Mitochondria - maybe just barely. ? Many bacteria - yes ? The microscopic size of most cells ensures a sufficient surface area across which nutrients and wastes can move to service the cell volume ? A small cell has a greater ratio of surface area to volume than a large cell of the same shape 30 ?m 10 ?m

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