The most important reason they are considered non living is because they cannot live and reproduce without the help of a host cell.
The system that is responsible for breaking down food and releasing essential nutrients and other substances that the body needs and requires is the digestive system.
The structural variations that can happen in a protein after translation to make it function appropriately are:
• Folding – In the cytoplasm it partakes chaperonin protein that will aid to fold the protein into a purposeful shape. The hydrogen bonds will form to create secondary protein and disulfide bonds will form tertiary structure and hydrogen bonds.
• Cleavage – The activation into a purposeful protein over cleavage of certain amino acid sequences in which the amino acid order can fold to form the secondary or tertiary structure.
• Chemical Modification – A method of chemically responding a protein or nucleic acid with chemical components.
• Elaboration – In particulars of folding, chaperones, kinds of bonds, the role of Golgi, combination into current molecular arrays. Etc.
