Lysosomes:    An  Owner’s  Guide    

By  Cathleen  Beliveau  

 Where  To  Find  Your  Lysosome  

 Your  Lysosome’s  TEM  

General  Function:  What  To  Do  With  Your  Lysosome  

  Lysosmes  are  a  breakdown  organelle  

  They  break  down  food  vacuoles  (in  pro=sts)  

  Recycle  damaged  organelles  or  small  amounts  of  cell  fluid  (in  animal  cells)  

  Mostly  found  in  white  blood  cells  

  Allows  cells  to  renew  themselves  

 How  To  Use  Your  Lysosome:    Digesting  Food  

1.  

2.  

3.  

Food  Vacuoles  Enter  Cell  

Lysosome  fuses  with  Food  Vacuole  

Diges=ve  enzymes  break  down  food  and  release  nutrients  into  cell  

How  To  Use  Your  Lysosme:  Recycling  Organelles  

Vesicle  containing  damaged  organelle  or  cell  fluid  enters  cell  

Fuses  with  vesicle  

Breaks  down  damaged  organelle  or  cell  fluid  Organic  molecules  can  be  reused  

1.  

2.  

3.  

Parts  and  their  Functions:  What’s  In  Your  Lysosome  

  Each  lysosome  has  many  types  of  diges=ve  enzymes  

  Different  types  of  enzymes  break  down  different  things  

  Membrane  protects  cell  from  enzymes  and  acidic  environment  

Structures  and  their  Functions:  Assembling  Your  Lysosome  

  Structure  of  lysosomes  shows  compartmentaliza=on  

  Lysosomal  membrane  surrounds  a  compartment  with  an  acidic  environment  for  diges=ve  enzymes  

  Separated  from  the  rest  of  the  cell  

  Break  down  damaged  organelles  

  Recycling  centers  break  down  used  paper,  glass,  etc.  

  Cell  can  reuse  parts  

  Recycling  centers  use  recycled  materials  to  make  new  things  

Bibliography  

  hPp://publica=ons.nigms.nih.gov/insidethecell/chapter1.html  

  hPp://www.biology4kids.com/files/cell_lysosome.html  

  hPp://hyperphysics.phy-­‐astr.gsu.edu/hbase/biology/lysosome.html  

  hPp://www.csulb.edu/~zedmason/emprojects/Ramon/!RAMON.HTM  

  hPp://micro.magnet.fsu.edu/cells/lysosomes/lysosomes.html  

  hPp://blog.marianisel.com/index.php/2011/01/10/recyle-­‐your-­‐electronics/  

  Biology  Concepts  and  Connec=ons,  Sixth  Edi=on.  Pearson  Educa=on,  2011