1.Central component = Golgi sacs (cisternae)
Cis phase = phasing the nucleus
Trans phase = phasing peripheral of cell
Nr. Of sacs = 5-11/Golgi apparatus
Sacs from cis field have thinner membrane than those from trans region
Lumanet minisculeer in primaeval and bigger in peripheral part
2.Cis reticulum, is composed out of small vesicles located between ER and the Golgi sacs
Diameter of vesicles = Ã… (10-15)
3.Trans reticulum, is composed of commodious vesicles with size of nm
There is a gradient of material approach shot from ER
oGolgi receives materal in vescicles from ER, changes t and sends material of other account in other vesicles
11.2 Functions of Golgi apparatus.
1)Cell secretion
Concentration of secretary products, with takes get into in Golgi sacs at the peripheral and also in secretory vesicles that start from trans region.
Concentration starts with inhibition of Ca2+ pumps → increase in intracellular concentration of Ca2+, larger particles are formed, osmotic pressure is trim
The biochemical prosessing of material
oProtolysis: from long polypeptide chains to small, until final space of protein.
oEx: Albumin:
-Is first long = preproalbumin
-second = proalbumin
-Final = Albumin
oTerminal glycosylation = large sugars are cut
oGlycosylation of lipids
-Formation of glycolipids = most complex = gangliosides
- Synthesis of glucopolysacharides
-Sulphation
Addition of sulphate groups to both protein and lipids
oSorting or segregation of secretory products
oPackaging of materials in vesicles
oDelivery of secretory vesicles to the ph
2)The biogenesis of lysosomes
3)Membrane biogenesis
oPhosphor lipids are synthesized both in the ER and Goldi
oMembrane components leave ER to Cis-Region of Golgi
Vesicles ordain perforate membrane of Golgi and lead be proessed.
oVescicles will leave Golgi and are delivered to plasmamembrane...If you want to get a exuberant essay, order it on our website: Ordercustompaper.com
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