The Golgi Apparatus

Defining: Golgi apparatus – a group of flattened

stacks of membranes ( Golgi body)Cisternae – individual stacks of membranes (

Latin “ collecting vessels”Cisternae vary in number within the golgi

apparatus, depending on what kind of cell they are in

Functions:Collection of moleculesPackaging of moleculesDistribution of moleculesThe synthesis of cell wall components

Parts:Transport vesicles – transport non

synthesized materials from ER ( Endoplasmic reticulum)

Lumen – storage for materials before going to the cis face

Cis face – front, receiving end, located near ER, materials arrive via transport vesicles

Parts:Trans face – back, exit, materials are

discharged into secretory vesiclesSecretory vesicles – carry synthesized

materials to their correct locationLysosomes – digestive vesicles, contain high

levels of degrading enzymes

Collecting, Packaging, & DistributionTransport vesicles bring materials into the cis

face, cis face synthesizes and moves materials into the trans face

Trans face sends synthesized materials into secretory vesicles which then send them into their proper locations

Synthesis: Cell wall componentsNoncellulose polysaccharides which form

part of the cell walls in plants get synthesizedAfter they are synthesized, they get sent to

the plasma membrane, they are added to cellulose

When added to cellulose, it is assembled on the exterior part of the cell wall