2-Structure_and_Function_Jan10

Smooth er no ribosomes involved in synthesis of

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Unformatted text preview: Fungi: chi,n (polymer of N- acetylglucosamine). –  Also cell walls made of galactose, mannose, etc. 19 h`p://web.virginia.edu/Heidi/chapter7/chp7frameset.htm The nucleus of eukaryotes •  •  Euchroma,n: loosely packed, ac,vely transcribed. Heterochroma,n: densely packed, low level of transcrip,on. 20 h`p://micro.magnet.fsu.edu/cells/nucleus/chroma,n.html, Brock Biology of Microorganisms, 13th Edi,on. The nucleus of eukaryotes Double Membrane •  mRNA for cytoplasmic proteins: ribosome- mRNA complex stays free in the cytoplasm. •  mRNA for membrane proteins, secreted proteins or vesicular proteins: ribosome- mRNA complex is directed to the ER. 21 h`p://www.erin.utoronto.ca/~w3bio315/lecture...
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