Lecture 3, Ch. 7A

Lecture 3, Ch. 7A - Lecture #3 Date _ s Chapter 7, II ~ A...

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Lecture #3 Date _________ Chapter 7, II ~ A Tour of the Cell
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Other membranous organelles, I Mitochondria • quantity in cell correlated with metabolic activity; •cellular respiration; •double membranous (phospholipid); •cristae/matrix; •intermembrane space; •contain own DNA
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Other membranous organelles, II Chloroplast •type of plastid; •double membranous; •thylakoids (flattened disks); •grana (stacked thylakoids); •stroma; •own DNA
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Peroxisomes Single membrane Produce hydrogen peroxide in cells Metabolism of fatty acids; detoxification of alcohol (liver) Hydrogen peroxide then converted to water
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The Cytoskeleton Fibrous network in cytoplasm Support, cell motility, biochemical regulation Microtubules : •thickest; •tubulin protein; •shape, support, transport, chromosome separation Microfilaments : •thinnest; •actin protein filaments; •motility, cell division, shape Intermediate filaments : middle diameter; •keratin; •shape, nucleus anchorage
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This note was uploaded on 10/31/2011 for the course BIO 102 taught by Professor Robinson during the Spring '09 term at UPenn.

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Lecture 3, Ch. 7A - Lecture #3 Date _ s Chapter 7, II ~ A...

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