Which organelle is not primarily involved in protein manufacturing or processing?

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Prepare for the Virginia 7th Grade Science SOL Test. Incorporate flashcards and multiple choice questions, each with hints and detailed explanations. Ensure your success on the exam!

Multiple Choice

Which organelle is not primarily involved in protein manufacturing or processing?

Explanation:
Proteins are made and processed through a system that starts with ribosomes, then moves to the rough endoplasmic reticulum for folding and modification, and finally through the Golgi apparatus for sorting and shipping. Chloroplasts, on the other hand, are the sites of photosynthesis in plant cells, converting light energy into chemical energy and helping make sugars. Their main role is energy capture and metabolism, not producing or processing proteins. So chloroplasts are the organelle not primarily involved in protein manufacturing or processing. The other listed organelles are directly tied to making, folding, or shipping proteins.

Proteins are made and processed through a system that starts with ribosomes, then moves to the rough endoplasmic reticulum for folding and modification, and finally through the Golgi apparatus for sorting and shipping. Chloroplasts, on the other hand, are the sites of photosynthesis in plant cells, converting light energy into chemical energy and helping make sugars. Their main role is energy capture and metabolism, not producing or processing proteins. So chloroplasts are the organelle not primarily involved in protein manufacturing or processing. The other listed organelles are directly tied to making, folding, or shipping proteins.

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