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What are the reactants of proteins?

What are the reactants of proteins?

KEY: H = hydrogen, N = nitrogen, C = carbon, O = oxygen, R = variable side chain. Proteins are organic compounds that contain carbon, hydrogen, oxygen, nitrogen, and, in some cases, sulfur. These compounds have many essential functions within the cell (see below). Proteins are made of smaller units called amino acids.

What are the reactants of amino acids?

Amino acids can be linked by a condensation reaction in which an ―OH is lost from the carboxyl group of one amino acid along with a hydrogen from the amino group of a second, forming a molecule of water and leaving the two amino acids linked via an amide—called, in this case, a peptide bond.

What are the 3 elements in protein?

Proteins contain the elements carbon, hydrogen, and oxygen just as carbohydrates and lipids do, but proteins are the only macronutrient that contains nitrogen.

What are the 4 main elements in protein?

Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON).

What made up protein?

What Are Proteins Made Of? The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain (see below).

What is the R group on an amino acid?

side chain
Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH.

What is the main component of protein?

What percentage of human body is protein?

Protein is a functionally important component at the molecular level of body composition. Protein mass in healthy adults is relatively large, representing 10.6 kg, or 15.1%, of body mass in the reference man (1).

Which is the major element of protein?

Detailed Solution. The Correct Answer is Nitrogen. Proteins are made up of molecules called amino acids and are found in all living organisms. Each amino acid contains four elements: hydrogen, oxygen, nitrogen, and carbon, as well as sulphur in some cases.

Why are proteins so important?

Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women.

What are some of the reactions of proteins?

Reactions of proteins. -A great number and variety of enzyme-catalyzed reactions are known with protein as a substrate. -These include -Hydrolytic reactions (cleavage of peptide bonds or other linkages, e.g., the ester linkage in a phosphoprotein), -Transfer reactions (phosphorylation, incorporation of acyl residues,…

What are the color reactions of protein in water?

The water remained clear, indicating the sample lacked the presence of proteins, and thus was our negative control. The albumin sample observed changed to an orange-purple color, indicating the presence of protein. The peptin sample changed to a pink-purple hue, testing positive for presence of peptides.

Which is the first reaction in protein catabolism?

Proline oxidase is the enzyme that catalyzes the first reaction in the catabolism of proline. None of the other amino acid answer choices have this limitation. How is most of the ammonium waste removed from the body?

Which is an example of an acute phase protein?

Acute Phase Protein 1 Inflammation and Healing1. Acute phase proteins are plasma proteins synthesized in the liver whose concentrations increase (or decrease) by 25% or more during inflammation. 2 Polymyalgia rheumatica and giant cell arteritis. 3 Biomarkers in Nonclinical Drug Development. 4 Other Vasculitis. 5 Arteriosclerosis