Is peptide acid or base?

Question

let me rephrase my question for the first and the third answerer.............what is peptide?
Would you please get down to the answer to my original question? if you know it....i don't need a definition.....

or is protein acid or base?

Answer 1

peptide is an organic compound composed of amino acids linked together chemically by peptide bonds.

Answer 2

A peptide is a small protein, or one of the chains in a larger protein with quaternary structure. All proteins are chains of amino acids linked together covalently by the so called peptide bond, exclusive for proteins. Each amino acid is a composed by a central carbon linked to a COOH group, an H, and an amino group. The fourth is different for each one of the 20 amino acids, is what makes them different from each other; it can be a simple H or a complex compond. These are called amino acids bases and give the amino acid different chemical characteristics: some are acids, some are bases, some are aromatic componds, some are polar and some are apolar. The combination of the different kinds of amino acids and their sequence in the chain gives the peptide is chemical characteristics, that are also dependent on the solvent their in (membranes, citosol, matrix of organelles...)

Answer 3

A peptide is a small (or large) linking of amino acids. This can be as small as two or three amino acids, or as large as a protein.

Amino acids (in general) have both acidic and basic properties. Some have more, some have less. Glutamate, for example, is an acid residue, while Tryptophan is basic. You can't generalize acid or base with all peptides, it just can't be done. Any generic peptide has both an acidic end and a basic end (they are zwitterions).

Proteins are the same way - some are acidic, some are basic, some are neutral. It all depends on what amino acids are in them, and it what proportion.

Answer 4

A base is a compound that accepts hydrogen ions and removes them from a solution. A solution is a liquid consisting of a uniform mixture of two or more substances. A peptide bond is a chain of amino acids linked by a process called dehydration reaction, a reaction that removes a hydroxyl group (OH) from one monomer (1 molecule of amino acid) and a hydrogen from the next monomer to be linked in the chain. I do not know the answer to your question, but in my opinion, since a monomer does not have the characteristics of being a solution, I don't think the chain can be considered a base or an acid. However, through the dehydration process, the release of an OH and H from the two monomers to create water might have something to do with it.

Answer 5

Depends on the solvent in which the peptide is solublized

Answer 6

a bond