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What is the primary function of the 'Golgi apparatus' in a eukaryotic cell?
Protein synthesis
Packaging and secretion of proteins
Energy production
DNA replication
Packaging and secretion of proteins
The Golgi apparatus, often called the 'post office' of the cell, is primarily responsible for modifying, sorting, and packaging proteins and lipids. These molecules arrive from the Endoplasmic Reticulum and are processed before being sent to their final destinations within or outside the cell.
The Golgi apparatus, often called the 'post office' of the cell, is primarily responsible for modifying, sorting, and packaging proteins and lipids. These molecules arrive from the Endoplasmic Reticulum and are processed before being sent to their final destinations within or outside the cell.
Think of the Golgi apparatus as a logistics center or a post office where items arrive, get labeled, packaged securely, and shipped to the correct address.
G stands for 'Golgi' and 'Goods-packer'.
RERтЖТGolgiтЖТVesicle
Glycosylation=Addition┬аof┬аcarbohydrates┬аto┬аproteins
Proteins synthesized in the Rough Endoplasmic Reticulum are transported via transport vesicles to the cis-face of the Golgi stack. As these proteins move through the cisternae, they undergo post-translational modifications like glycosylation or phosphorylation. Finally, the processed products are packaged into secretory vesicles at the trans-face, which then bud off to reach their specific cellular locations.
It consists of flattened membrane-bound sacs called cisternae.
It is essential for the formation of lysosomes by budding off digestive enzymes.
It is polar in nature, having a 'cis' (receiving) and a 'trans' (shipping) face.
Ensures precise delivery of cellular products.
Facilitates complex protein modifications.
Secretion of digestive enzymes by pancreas cells.
Production of components for the extracellular matrix.
Option A (Protein synthesis) is the function of Ribosomes.
Option C (Energy production) is the function of Mitochondria.
Option D (DNA replication) occurs in the Nucleus during the S-phase of the cell cycle.
B is correct тАФ The Golgi apparatus is specialized for the post-translational processing, packaging, and sorting of secretory products in eukaryotic cells.
In exams, remember that mitochondria produce energy (ATP), ribosomes synthesize proteins, and the Golgi apparatus acts as the dispatch center. Distinguishing these roles is a high-frequency question in RRB and SSC science segments.
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