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WHAT ARE PEROXISOMES??

PEROXISOMES

ISOLATED FROM;

➤DE-DUVE AND COWORKERS ISOLATED IN 1965 PARTICLES FROM LIVER CELLS AND

   OTHER TISSUES WHICH WERE ENRICHED WITH SOME OXIDATIVE ENZYMES, 

 ★SUCH AS;

 ★PEROXIDASE,

 ★CATALASE,

  GLYCOLIC ACID OXIDASE AND SOME OTHER ENZYMES.

WHY WE CALLED IT PEROXISOMES??

 ➤THE NAME PEROXISOME WAS APPLIED BECAUSE THIS ORGANELLE IS SPECIFICALLY

     INVOLVED IN THE FORMATION AND DECOMPOSITION OF HYDROGEN PEROXIDE IN

     THE CELL. 

CYTOPLASMIC ORGANELLE;

➤THESE ARE SINGLE MEMBRANE ENCLOSED CYTOPLASMIC ORGANELLE FOUND

    BOTH IN ANIMAL AND PLANT CELLS.


IN ANIMAL CELL

peroxisomes


IN PLANT CELL



peroxisomes


CONTAINS

➤THESE ARE CHARACTERIZED BY CONTAINING H2O2-PRODUCING OXIDASES AND

    CATALASE. 

DIAMETER;

➤THEY ARE APPROXIMATELY 0.5 UM IN DIAMETER. 

FOUND IN;

➤THEY HAVE ALSO BEEN FOUND IN PROTOZOA, YEAST AND MANY CELL TYPES OF

    HIGHER PLANTS. 


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