Where do proteins that enter the Golgi apparatus come from?

Answer 1

Protein molecules are composed of amino acids, which contain nitrogen and sometimes sulphur. Your body uses amino acids to produce new proteins and to replace damaged proteins.

Your body can synthesize most of the 21 amino acids that you need to make protein, with the exception of nine essential amino acids (histadine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine) that must come from your food.

Fortunately, all unrefined foods have varying amounts of protein with varying amino acid profiles, including leafy green vegetables, tubers, grains, legumes, and nuts. All the essential and nonessential amino acids are present in these foods in amounts that meet or exceed your needs.

Answer 2

Proteins that enter the Golgi apparatus mainly come from the endoplasmic reticulum (ER), where they are synthesized and processed. They are transported to the Golgi apparatus in vesicles for further modification and sorting before being sent to their final destinations within or outside the cell.

Answer 3

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Answer 4

Proteins are made from amino acids and are synthesized via translation.

Answer 5

They can send them to other parts of the cell, to the membrane, or outside the cell.