How do you explain Golgi apparatus?
Golgi apparatus is a unique feature of eukaryotic cells, specially developed in cells with secretory functions.
The apparatus is made up of flattened single membrane bound sacs called cisternae. Each sac shows a curvature, bunch of sacs are parallely arranged in a stack and the apparatus shows convex curvature towards nucleus.
Convex face is forming from smooth ER (cis face) while maturing concave end (trans face) is giving rise to secretory vacuoles, lysosomes, etc. Golgi apparatus is part of cellular processing and transport system. Materials are delivered here from ER: Golgi cisternae process them, modify them and pack them to be dispatched as secretory materials.
The Golgi apparatus ( G A) is commonly found in eukaryotes.
The GA is a series of membranes shaped like pancakes. This single membrane surrounds an area of fluid where complex molecules are stored and changed. The GA processes several proteins which are received from the Endoplasmic Reticulum. These are then sorted and transported to lysosomes, plasma membrane or secretory granules.
In plant cells complex polysaccharides are also synthesised in the G A.
The GA is thus involved in processing a broad range of cellular constituents that travel along the secretory pathway.
Impact of this question
Creative Commons License