Question

Golgi body originates from which of the following?
(a) E R
(b) Mitochondria
(c) Nucleus
(d) Proplastid

Answer 1

Hint Packages of enzymes and new proteins that originate in this organelle fuse together to form the Golgi. As this process continues and other proteins are processed and mature, the next Golgi compartment is created.

Complete answer:
The Golgi apparatus that is also called the Golgi complex, is commonly found in eukaryotic cells. It can be easily identified as it has a unique structure that looks like a maze, but rather is a structure, made of stacks of flattened membranous sacs, or cisternae.
The Golgi apparatus as a cell organelle is responsible for the processing and packaging of protein and lipids, as well as processing proteins for secretion. After proteins are modified in the Golgi apparatus, they are usually sent to different sites within the cell, like lysosomes, secretory granules, or plasma membrane depending on the signals encoded within the protein sequence and structure. The endoplasmic reticulum aids in the formation of Golgi bodies.

Additional information:
There are mainly two prevailing theories as to the formation of the Golgi apparatus.
-The vesicular shuttle model states that the Golgi cannot be alone made from scratch and that the newly formed vesicles of the endoplasmic reticulum are sent to the pre-existing Golgi.
-The cisternae maturation model suggests that vesicles from the ER fuse together to form the Golgi bodies and as the proteins become processed and matured they create the next Golgi compartment. But, as per new data, neither model is completely correct.

So, the correct answer is ‘Endoplasmic Reticulum(ER)’.

Notes: The Golgi complex consists of is divided into two sections: the Cis Golgi and the Trans Golgi Network (TGN).
The Cis Golgi generally functions as a receiver for newly synthesized proteins that are produced from the lumen of the Endoplasmic Reticulum (ER). Vesicles containing proteins that are transferred from ER merge with the Cis Golgi allowing the proteins to enter the Golgi complex. Afte the Cis Golgi receives proteins from the ER, the proteins then start to modify and move along the membrane to membrane towards the TGN. This modified protein arrives at the TGN where it is then sent to different constituents of the cell via a transport vesicle.