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Protein packaging is done by...

Protein packaging is done by

A

Nucleolus

B

Ribosomes

C

Golgi apparatus

D

Endoplasmic reticulum

Text Solution

AI Generated Solution

The correct Answer is:
To determine which organelle is responsible for protein packaging, let's analyze the options provided: 1. **Endoplasmic Reticulum (ER)**: - The endoplasmic reticulum is involved in the synthesis of proteins and lipids. It has two types: rough ER (which has ribosomes and is involved in protein synthesis) and smooth ER (which is involved in lipid synthesis). However, while it plays a crucial role in the synthesis of proteins, it is not primarily responsible for packaging them. 2. **Ribosomes**: - Ribosomes are the sites of protein synthesis. They translate messenger RNA (mRNA) into polypeptide chains (proteins). However, ribosomes do not package proteins; they only synthesize them. 3. **Nucleolus**: - The nucleolus is found within the nucleus and is primarily responsible for the synthesis of ribosomal RNA (rRNA). It does not play a role in protein synthesis or packaging. 4. **Golgi Apparatus**: - The Golgi apparatus is the organelle responsible for modifying, sorting, and packaging proteins and lipids for secretion or delivery to other organelles. It receives proteins from the endoplasmic reticulum, processes them, and then packages them into vesicles for transport. Based on this analysis, the correct answer to the question "Protein packaging is done by" is: **Golgi Apparatus**.
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