The process of making and exporting a protein from a cell is the following:
Ribosomes are the macromolecules responsible for the synthesis or translation of the amino acids of the mRNA, through the use of genetic data the process of making a protein occurs.
The mRNA, in short, is ribonucleic acid that houses the genetic code that comes from the nucleus of the cell.
In this way, it defines how the amino acids of proteins should join, functioning as a kind of pattern or model for synthesis.
The proteins that must be exported from the endoplasmic reticulum are selected, that is, the proteins destined for the ER begin their synthesis in the free ribosomes in the cytosol.
The fate of these proteins is to be secreted by the cell, as well as to reside in the plasma membrane, the Golgi apparatus, lysosomes, and the ER itself.
Therefore, the ER has the function of exporting only those proteins that are correctly folded and directing those that are not folded to degradation, thus avoiding the accumulation of aberrant proteins that can lead to apoptosis.
Therefore, we can conclude that the process of making a protein from a cell starts in the ribosomes and the process of exporting a protein from a cell is in the endoplasmic reticulum.
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