bio 102 lecture 1-30 - Cellular structure function(readings...

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1/30/08 –Cellular structure/ function (readings: Ch. 3, pp:44-57) Lecture outline Cell structure and function Once in, how does HIV complete its life cycle? Basics of cell communication Cell structure and function Once HIV is in, what does it do? Utilizes several cell organelles to complete it’s life cycle Can use HIV life cycle to understand cell structure Once in the cell- HIV proteins and RNA released into cytoplasm Cytoplasm Mostly water Also contains proteins & other chemicals Cell organelles “floating” in it… Once in cytoplasm, HIV uses enzyme reverse transcriptase to change from RNA to DNA Animal cells controlled by DNA HIV then moves to nucleus Nucleus Control center of cell Contains chromosomes hereditary material Surrounded by nuclear envelope Has nuclear pores Allow communication with cell, protein synthiesis HIV gets into nuclear pore (don’t know exactly how) Once in nucleus, HIV uses enzyme integrase
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  • Spring '08
  • Alfaro
  • Endoplasmic Reticulum, cell- HIV proteins, virions HIV virions, cell communication Cell

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