Ribosomes and mitochondria are both found inside cells.
- Ribosomes are located either freely floating in the cytoplasm or attached to the endoplasmic reticulum (ER) and nuclear envelope within the cell
. Additionally, cytoplasmic ribosomes can cluster on the outer mitochondrial membrane, where they are involved in synthesizing proteins destined for mitochondria
- Mitochondria are organelles within the cell that have their own ribosomes called mitochondrial ribosomes (mitoribosomes). These mitoribosomes are attached to the inner mitochondrial membrane and translate mitochondrial mRNAs encoded by mitochondrial DNA
In summary, both ribosomes and mitochondria coexist inside the cell , with ribosomes present in the cytoplasm and on mitochondrial surfaces, and mitochondria as distinct organelles within the cell
