Question

From where sugar comes in Golgi apparatus to form there glycoprotein and glycolipids?​

Answer 1

Answer:

glycoproteins, sugars are attached either to the amide nitrogen atom in the side chain of asparagine (termed an N-linkage) or to the oxygen atom in the side chain of serine or threonine (termed an O-linkage).

Explanation:

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Answer 2

Answer:

Sugars are added to proteins to form glycoproteins in the lumen of the endoplasmic reticulum within the Golgi complex.

Explanation:

The sugars on glycoproteins have been placed there by glycosylation — a precise enzymatic activity that makes a product which would otherwise not function correctly. However, sugars can also spontaneously form covalent links to proteins (and lipids) — a process called glycation

In glycoproteins, sugars are attached either to the amide nitrogen atom in the side chain of asparagine (termed an N-linkage) or to the oxygen atom in the side chain of serine or threonine (termed an O-linkage)

Glycoprotein synthesis involves the formation of O-glycosidic linkages by sequential addition of monosaccharides directly to OH− groups of serine or threonine residues in the protein.