Ribosomes: Justify presence of both attached & free ribosome in cytoplasm.
Ribosomes exist in two forms in the cytoplasm: free ribosomes and attached (bound) ribosomes, each serving distinct functions:
Free Ribosomes: Float freely in the cytoplasm.
Function: Synthesize proteins that function within the cytoplasm (e.g., enzymes for metabolism).
Attached Ribosomes:
Bound to the rough endoplasmic reticulum (RER).
Function: Protein Synthesis – Produces proteins for secretion, plasma membrane, and organelles (e.g., lysosomes).
Transport – Sends proteins to the Golgi apparatus for further processing and distribution.
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