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Questions and Answers
What is the function of a ribosome within the cell?
What is the function of a ribosome within the cell?
- Protein synthesis (correct)
- DNA replication
- Energy production
- Cell division
Where are ribosomes located in eukaryotic cells? (Select all that apply)
Where are ribosomes located in eukaryotic cells? (Select all that apply)
- Cytoplasm (correct)
- Rough Endoplasmic Reticulum (correct)
- Nucleus
- Mitochondria
How do the roles of free ribosomes differ from the roles of membrane-bound ribosomes?
How do the roles of free ribosomes differ from the roles of membrane-bound ribosomes?
Free ribosomes synthesize proteins that will be used in the cytoplasm, while membrane-bound ribosomes synthesize proteins that will enter the Rough ER for processing.
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Study Notes
Ribosomes: Function and Location
- Ribosomes are essential for protein synthesis and translation within cells.
- They play a crucial role in converting genetic information into functional proteins.
Ribosome Locations in Eukaryotic Cells
- Located in the nucleolus, where ribosomal RNA is synthesized.
- Present in the cytoplasm, either freely floating or attached to the Rough Endoplasmic Reticulum (Rough ER).
- Rough ER, studded with ribosomes, facilitates protein processing and transport.
Free vs. Membrane-Bound Ribosomes
- Free ribosomes generate proteins primarily utilized in the cytoplasm, supporting various cellular functions.
- Membrane-bound ribosomes produce proteins meant for insertion into membranes or export out of the cell, linked to the Rough ER processing pathway.
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