Table 8.2 Common Amino Acids Found in Proteins Amino acids with a nonpolar R group Common Name We end the chapter with a discussion of enzymes-the proteins that act as catalysts in the body. We begin our study of proteins by looking at the properties and reactions of amino acids, which is followed by a discussion of how amino acids link covalently to form peptides and proteins. Immunoglobulins recognize and breakdown foreign molecules. Protect cells or the organism from foreign substances Ovalbumin stores amino acids in the egg white that will be used by the developing bird. Insulin regulates the activity of specific enzymes in the body. Regulate the functioning of other proteins Hemoglobin transports oxygen from the lungs throughout the body. Transport substances from one place to another Myosin is one protein needed for the contraction of muscles. Keratin is the primary protein of hair and wool. Α-Amylase catalyzes the hydrolysis of starch and glycogen.

Table 8.1 Classification of Proteins by Biological Function Classification

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