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Some of my writings has been publihed by chennnai online

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Wednesday 20 August 2014

6. cell organelles- Endoplasmic reticulam






It  is      discovered   with    R.porter,   Albert   claude  and  Ernenest  of  F. Fullam in  the year  1945. It  is divided  into  Rough endoplamic reticulam  and   Smooth   endoplasmic   reticulam.  Generally in      resting cells  it  is   limited   and   in  growing  cells  it   is  unlimited.  cells surrounding  an  embryo   have large  endoplamic  reticulam   which one   is  helpful  for  its    nutrition.  If   it   is  associated  with   ribosomes,   an  cell  organelle  it  is  called  rough  endoplamic reticulam    and  the  endoplamic reticulam  with  absence of  ribosomes is  called   as  smooth   endoplamic reticulam.  It  is   a sac  like  structure having  folds.  It  gives  skeletal framework to  the cell.  The  smooth  endoplamic  reticulam  helps  in  the synthesis  of lipids  and glycogen  breakdown.  During cell division, the  endoplamic  membrane  disappear    and   form a   new nuclear  membrane.

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