Proteins are broken down into amino acids. These are actually called the building blocks of proteins.
Amino Acid
enzymes i think?
The first product of proteins digestion are polypeptides.
DNA are not chemically having protein. But DNA are coiled to chromatin structures by proteins called histones. DNA can interact with proteins for various reason including DNA replication.DNA are not chemically bonded with proteins. But they do interact with protins for various process including DNA replication. In nucleus, DNA coiled to form chromatin structures by histone proteins.
Basically proteins are not manufactured, but produced by living cells. But proteins can then be modified chemically, splitted and recomposed in a lot of ways industrially for specific purposes.
All enzymes are chemically proteins. but not all proteins are enzymes. Enzymatic proteins catalyse the biochemical conversion of substrate in to product. Good example is amylase that digest starch or glycogen to produce glucose.
They are actually called amino acids. Anyway amino acids are small molecules that are linked chemically to other amino acids to form proteins.
The Golgi Apparatus modifies proteins chemically then repackages them. Proteins are modified both in the Endoplasmic Reticulum and the Golgi Apparatus, and proteins are packaged in both locations into vesicles. However, judging by the word "repackage", the Golgi Apparatus is the likely answer (ER sends its vesicles to Golgi for further processing).
Proteins. Specifically caseins are responsible for curdling.
The endoplasmic reticulum
Channel proteins are on the plasma membrane, selectively transport the solutes such as ions, small and large proteins across the membrane. Carrier proteins also membrane proteins that allow diffusion of different molecules. Both proteins are chemically made up of amino acids.