What happens to proteins as they pass through the Golgi apparatus?

“Glycosylation” – Golgi apparatus modifies proteins by adding sugar molecules

Protein processing is another important function of Golgi. The raw proteins synthesized from ribosomes are purely long chains of amino acids. These proteins need to be modified by adding carbohydrate (sugar units) portions to become “glycoproteins”. The prefix “glycol-” means “sugar”.


[In this figure] Type of glycoprotein.
Photo credit: BioProcess.

Extended read:

Golgi apparatus function cover

Golgi Apparatus Function – the Post Office inside the Cells

This article covers