Scelta multipla
Which organelle is primarily responsible for modifying, sorting, and packaging proteins for secretion or delivery to other cellular destinations?
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13. Intracellular Protein Transport
Golgi Processing and Transport
Scelta multipla
In the context of Golgi processing and transport, which organelle sorts, modifies, and packages proteins for secretion or delivery to other organelles?
A
Golgi apparatus
B
Nucleus
C
Mitochondrion
D
Rough endoplasmic reticulum
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Understand the role of each organelle listed: The nucleus contains genetic material and controls cell activities; mitochondrion generates ATP through cellular respiration; rough endoplasmic reticulum (RER) synthesizes proteins and has ribosomes attached.
Recall the function of the Golgi apparatus: it receives proteins from the rough ER, modifies them (such as adding carbohydrate groups), sorts them, and packages them into vesicles for secretion or delivery to other organelles.
Identify that the question asks specifically about sorting, modifying, and packaging proteins for secretion or delivery, which are key functions of the Golgi apparatus.
Eliminate other options based on their primary functions, confirming that the Golgi apparatus is the organelle responsible for these processes.
Conclude that the Golgi apparatus is the correct answer because it acts as the central hub for processing and trafficking proteins after synthesis in the rough ER.
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