WHAT IS GOLGI APPARATUS IN DETAILED???

★★★GOLGI APPARATUS★★★

➤DISCOVERED BY;

★GOLGI APPARATUS WAS DISCOVERED BY  AN ITALIAN PHYSICIAN 

CAMILLO GOLGI IN 1898. 

➤GOLGI COMPLEX OR GOLGI APPARATUS;

★THIS APPARATUS, WHICH WAS FOUND VIRTUALLY IN ALL EUKARYOTIC

   CELLS, CONSISTS OF STACKS OF FLATTENED,  MEMBRANE BOUND SACS, 

   CALLED CISTERNAE. THIS CISTERNAE TOGETHER WITH ASSOCIATED

   VESICLES ARE CALLED GOLGI COMPLEX. 

➤COMPLEX SYSTEM;

★IT IS A COMPLEX SYSTEM OF INTERCONNECTED TUBULES AROUND THE

 CENTRAL STACKS. CISTERNAE STACKS ARE CONTINUOUSLY FORMED BY

 FUSION OF VESICLES, WHICH ARE PROBABLY DERIVED BY THE BUDDING 

OF SER.

 ➤FORMING FACE;

★THEIR OUTER CONVEX SURFACE IS THE FORMING FACE, 

➤MATURING FACE;

★WHILE THE INNER CONCAVE SURFACE IS THE MATURING FACE.

➤MOVEMENT OF CISTERNAE;

 ★THE CISTERNAE BREAK UP INTO VESICLES FROM THE LATTER. 

    THE WHOLE STACK CONSISTS OF A NUMBER OF CISTERNAE 

    THOUGHT TO BE MOVING FROM THE OUTER TO THE INNER FACE.

➤FUNCTION;

★GOLGI COMPLEX IS CONCERNED WITH CELL SECRETIONS. 

                 "SECRETIONS ARE PRODUCTS FORMED WITHIN THE CELL ON

                 RIBOSOMES AND THEN PASSED TO THE OUTSIDE THROUGH 

                 ENDOPLASMIC RETICULUM AND GOLGI APPARATUS "

➤PACKING OF PRODUCT;

★THE SECRETIONS ARE CONVERTED INTO FINISHED PRODUCT

   AND ARE PACKED INSIDE MEMBRANE, BEFORE EXPORT.

➤FOR EXAMPLE;

★ IN MAMMALS, THE PANCREAS SECRETES GRANULES CONTAINING

   ENZYMES THAT HELP IN DIGESTION. THE GOLGI COMPLEX HAS A

   ROLE IN FORMATION OF THESE GRANULES. THE PROTEINS OR

   ENZYMES WHICH HAVE TO BE TRANSPORTED OUT OF THE CELL

   PASS THROUGH THE GOLGI APPARATUS. 

➤MOST IMPORTANT FUNCTION;

★THE MOST IMPORTANT FUNCTION OF THIS APPARATUS IS TO MODIFY 

    THE PROTEINS AND LIPIDS BY ADDING CARBOHYDRATES AND

   CONVERTING THEM INTO GLYCOPROTEINS OR GLYCOLIPIDS.