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14 Αυγ 2024 · Proteins: biomolecules capable of forming complex structures. Proteins are composed of amino acid monomers and have a wide variety of functions including transportation of molecules and muscle movement. Collagen, hemoglobin, antibodies, and enzymes are examples of proteins.
- Carbohydrates
Organic Polymers . Carbohydrates are not the only types of...
- Carbohydrates
16 Μαρ 2021 · All four of the main classes of biological molecules (nucleic acids, proteins, carbohydrates, lipids) include polymers. Most of the natural polymers encountered in everyday life are proteins, such as keratin in wool and hair; cellulose from plants; and collagen in skin.
31 Οκτ 2023 · Proteins (a polymer) are macromolecules composed of amino acid subunits (the monomers ). These amino acids are covalently attached to one another to form long linear chains called polypeptides, which then fold into a specific three-dimensional shape.
4 ημέρες πριν · A protein molecule is very large compared with molecules of sugar or salt and consists of many amino acids joined together to form long chains, much as beads are arranged on a string. There are about 20 different amino acids that occur naturally in proteins.
9 Ιαν 2021 · Proteins are polymers, meaning they are large molecules made up of many smaller molecules. The small molecules that make up proteins are called amino acids. Each amino acid contains a carbon atom, an amino group, a carboxyl group, and a side chain (also known as an R group).
In nature, some proteins are formed from several polypeptides, also known as subunits, and the interaction of these subunits forms the quaternary structure. Weak interactions between the subunits help to stabilize the overall structure.
A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.
