Proteins are molecules built from amino acids. Proteins make up a large portion of our body and serve extremely important functions. These functions are: Enzymes - biological catalysts that speed up the rate of reactions in our body. Messengers - some hormones are proteins. Hormones are chemical messengers that are synthesized and secreted by endocrine tissues and target specific organs. Immunoproteins - provide protection to our body in the form of immunoglobulins and antibo

Fatty acids are types of lipids that can be found in many different roles in our body including energy storage. Fatty acids consist of hydr

Which amino acid has the lowest isoelectric focus point? a. Lys b. Arg c. Gln d. Asp Isoelectric focus point or pI is the pH at which a protein has no net charge and does not move in an electric field. Isoelectric focus point basically tells us how acidic or basic a protein is. The more acidic the protein is the lower it's pI is. Therefore, looking at the answer choice we must first determine whether these amino acids are acidic, basic or neutral. Lysine is a basic amino acid

All proteins are composed of amino acids. Amino acids are molecules that have an amino group (NH3), an acid group (COOH), and an R group that differs with each amino acid. Amino acids can be hydrophobic (non polar) such as Valine, and Leucine, or polar, as well as acidic and basic. There are so many different proteins in our body that at one point scientists thought that proteins and not DNA were the genetic material responsible for coding all other molecules. All of the enzy