Golgi complex

Discovery of Golgi complex.

Golgi apparatus can be seen with both light and electron microscope. These can be also called as Golgi complex.

The Italian physician and noble laureate Camillo Golgi in 1898 discovered Golgi complex during an investigation of the nervous system.

Dalton and Felix discovered in 14.

Location of Golgi complex 

Golgi complex is present in all Eukaryotas and it is absent prokaryotic.

It is absent in some cells like mammalian RBCs, sperm cells, and bryophytes and pteridophytes and sieve of plants tube.

These can be small in size or can be large .they have different positions in different kinds of cells. It lives between the nucleuses. Invertebrates and plant cells have small Golgi complexes which are called dictosomes.

Structure of Golgi complex

They can be different in size, form but they have similar organizations.

In an electron microscope view shows the central stack pile of parallel.

Cisternae many peripheral tubules and vesicles.

Cisternae

The number of cisternae in animal cells varies from 3-7 and10-20 in plant cells.

They can be flat but can rottenly curved. These have two poles cis and the Trans face. They act as receiving and shipping departments. The materials which are secretory reach through Golgi complex by the smooth endoplasmic reticulum by way of transport vesicles which is connected with Golgi cisternae on the cis face.

Tubules

Tubules which are small in size and round in shape arise from the periphery of cisternae.

Vesicles

Vesicles of Golgi complex lies near the ends of concave surface of Golgi complex. There are two types of these vesicles

1.      Smooth or secretory vesicles

2.      Coated vesicles

All the elements in Golgi complex are filled with a material called Golgi matrix.

Functions of Golgi complex

·         First is secretion

·         The second function of Golgi complex is synthesis

·         The third and important function of Golgi complex is sulfation.

·         The forth basic function of Golgi complex is apoptosis.

·         The fifth function of Golgi complex is phosphorylation.

·         The last function of Golgi complex known to me is cell-specific function.