in what two places in the cell can translation occur
Translation in a cell happens in two main places:
- on free ribosomes in the cytosol , and
- on ribosomes attached to the rough endoplasmic reticulum (rough ER).
Quick Scoop
- In eukaryotic cells, mRNA leaves the nucleus and is translated by ribosomes floating freely in the cytosol to make proteins that usually stay in the cytoplasm, nucleus, or mitochondria.
- Other mRNAs are translated by ribosomes bound to the rough ER, producing proteins that are secreted, inserted into membranes, or sent to organelles like lysosomes.
- Both free and rough-ER-bound ribosomes are part of the same cytoplasmic pool; what differs is where they are located when they translate a given mRNA.
So, if your question is “in what two places in the cell can translation occur,” the school-level answer is: in the cytosol on free ribosomes and on ribosomes attached to the rough ER.
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