BIO 1140 Lecture Notes - Lecture 3: Cyanobacteria, Nucleolus, Plant Cell
25 Feb 2016
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Lec 3 : intro to cell biology (jan 19) Interior network of membranes ,allows to organize all compartments/organelles to be formed organelles : Dna located in the nucleus of the cell. Nuclear pores (made of proteins, largest protein complex within cell, size limit, nucleur localization signal to allow entry into the nucleus, to exit : prevents. Energy dependent mechanism to open/close the pores for mrna to exit/enter. Nucleolus : coding for ribosomal rna and ribosomal proteins, place where ribosomes are built. Large and small subunit (large assembly of even smaller subunits) Structure responsible to read the mrna sequence to make the appropriate proteins. Rough (ribosomes are studded): makes proteins, many ribosomes, therefore can make many proteins. Components/enviro to make lipids vs proteins are different/specialized. Smooth er : detoxifies the cell, removes alcohol. Folding and some chemical modification done in er, further modifications in golgi. Folds the proteins (chain of a. a) into proper shape.
