04 Proteins.doc - PROTEINS Specific Objectives At the end...

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PROTEINS Specific Objectives: At the end of this topic, the students should be able to: 1. Define the glossary; proteins, peptide, peptide bond and amino acid. 2. Write the general formula of amino acids. 3. List the function of proteins. Glossary : Amino Acids: The building blocks of protein molecules. Cellulose: Protein produced in response to a foreign substance. Glucose: Large molecule made of many smaller molecules called amino acids, important nutrient needed by the body. Enzymes: Proteins that speed up certain chemical reactions. Peptide: A compound composed of two or more amino acids, that linked together by peptide bond. What are Proteins? Proteins are molecules composed of one or more chains of amino acids. Proteins have many important biological functions such as: 1. Structure: Collagen in skin, keratin in hair, nails, horns. 2. Movement: Actin and myosin in muscle. 3. Defense: Antibodies in blood stream. 4. Storage: Zeatin in corn seeds.
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