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The Golgi apparatus has a polarity or sidedness to its structure and function. Which of the following statements correctly describes this polarity?A) Transport vesicles fuse with one side of the Golgi and leave from the opposite side.B) Proteins in the membrane of the Golgi may be sorted and modified as they move fromone side of the Golgi to the other.C) Lipids in the membrane of the Golgi may be sorted and modified as they move fromone side of the Golgi to the other.D) Soluble proteins in the cisternae (interior) of the Golgi may be sorted and modified asthey move from one side of the Golgi to the other.E) All of the above correctly describe polar characteristics of the Golgi function.

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Answer:

The correct answer is E)  All of the above correctly describe polar characteristics of the Golgi function.

Explanation:

Golgi apparatus is a single membrane-bound organelle that is made up of 5-8 flattened sacs known as cisternae. It is divided into two-phase cis face which is the entry phase and trans face which is maturing face.

Proteins and lipids produced in RER(rough endoplasmic reticulum) and SER(smooth endoplasmic reticulum) enters through the cis face and mature in trans face and exits through trans face.

Therefore protein, soluble proteins, lipids in the membrane of the Golgi may be sorted and modified as they move from one side of the Golgi to the other.

luisvaschetto

ALL statements above indicated correctly describe the polarity of the Golgi apparatus.

  • The Golgi apparatus acts to process and sort transport proteins to different cellular destinations (e.g., the extracellular medium, lysosomes, etc).

  • This organelle (Golgi) exhibits polarity both in structure and function.

  • The Golgi complex is connected to the endoplasmic reticulum through transport vesicles that carry material between these organelles.

  • Proteins from the endoplasmic reticulum enter at its cis face of the Golgi and then they are transported through this organelle to leave it from its trans face.

In conclusion, ALL statements above indicated correctly describe the polarity of the Golgi apparatus.

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