what are protein molecules?

Answer 1

This is a rather open question that can get you a lot of answers from different perspectives. Do you want to know how they are made? Where they are located in the cell? What they do in the cell? Please be more specific.

Answer 2

Proteins are large macromolecules they are made up of amino acids linked by a peptide bond. They are key components in any organism (living thing) involved in most of the reactions that happen within the cells in your body. When you eat protein it is broken down into the amino acids and reassembled into the different proteins that your body needs (or used as an alternative fuel source).

Sorry if this is to complicated or simplisitic I wasn't sure what level of answer you wanted. There is absolutely loads of information about proteins out there if you are interested
If you want more information you could look up proteins, or some examples you may have heard of are Hemoglobin, Insulin, antibodies, Keratin, Amylase.

Answer 3

Hello
Any large molecule containing chains of amino acids linked by peptide bonds
Examples of Protein Molecules are located in the second link

Hope this helps

Answer 4

Proteins are molecules based upon linear chains of amino acids.

The amino acids are linked in a vary particular type of bond called a peptide bond, which links the amine group on one amino acid to the carboxyl group of another. These polymerized chains of amino acids are thus refered to polypeptides. The identity and order of amino acids in polypeptides is what is ultimately encoded in the DNA. Thus, all of heredity is based upon the protein end-products of the genetic code for each individual; these proteins are, in turn, the basis of all structure and function, of assembly and maintenance, and of the essential machinery of life.

The molecules thus formed are said to have "orders" of structure:
Primary structure is the order or amino acids in the polypeptide chain.
Secondary structure deals with how polypeptides tend to form either alpha-helices or beta-pleated sheets.
Tertiary structure is how the proteins fold and arrange themselves in three dimensions, and is critical for the functional aspects of proteins, either as structural elements in muscle, etc., or as chemical catalysts in enzymes.
Quaternary structure deals the interactions of more than one protein molecule in complexes.

The chemistry of proteins is a large part of what is studied in a survey course in biochemistry, and involves many aspects of physical and organic chemistry as well as biology.

Answer 5

Proteins are macromolecules produced by ribosomes within a cell either attached the the endoplasmic reticulum or floating about in the cytosol when it reads RNA. RNA is a copy of DNA when it is in it's unraveled state, chromatin. From the two combining, RNA and ribosome, amino acid chains are synthesized. From there they fold upon themselves and gain structure and are then used to help your body function.

Answer 6

It is a long chain of
amino acids linked
by peptide bonds
in a specific sequence

Answer 7

little meaty moles!!!!