Handout3%20organelles

Handout3%20organelles - TA Paul Shao Sec A08 Wedn 6-7pm...

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TA: Paul Shao [email protected] Sec A08, Wedn 6-7pm HSS1305 OH: Mon 11-12pm PCE Handout #3 – Organelles Nucleus (control center) - Contain most of genes (some in mitochondria) - Enclosed in nuclear envelope (doulbe membrane, 2 bilipid layers, nuclear pores) - DNA organized into chromosomes => carry genetic info - Nucleolus: within nucleus where rRNA synthesized, regulate celluar process - Central dogma: DNA -> RNA -> protein Ribosome (protein factory) - rRnA + protein - protein synthesis (translation = RNA to protein) - large and small subunits - free ribosome = suspend in cytosol. Produce protein function in cytosol - bound ribosome = attach to rough ER. Produce protein that are inserted into membrane Endomembrane system - regulate protein traffic - perform metabolic funcion - include: Nuclear envelope, ER, golgi apparatus, plasma membrane, lysosome, vaculoes ER (endoplasmic Reticulum) – Biosynthetic system - 50% of total membrane - Smooth ER o synthesis of lipids and steroids o carbohydrate metabolism
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This note was uploaded on 01/14/2012 for the course BILD 1 taught by Professor Boulanger during the Winter '08 term at UCSD.

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Handout3%20organelles - TA Paul Shao Sec A08 Wedn 6-7pm...

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