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Protein synthesis in the cell takes place at
ACentrosomes arranging spindle fibres in mitosis
BLysosomes breaking down old organelles
CChloroplasts capturing light energy for sugars
DRibosomes reading mRNA to assemble amino acids
Answer & Solution
Correct answer: D. Ribosomes reading mRNA to assemble amino acids
1. The chapter section 2.7 calls ribosomes 'factories' for protein synthesis.
2. Ribosomes can be free or attached to rough ER.
3. They translate mRNA into amino acid chains.
4. So ribosomes are the protein-synthesis site.
_Source: Selina Concise Biology Class 9, Ch 2 Cell, the Unit of Life (Mistral OCR'd PDF), section 2.7 Ribosomes_
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