Concepts of Human Anatomy & Physiology   5/e   Van De Graaff/Fox
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I. Atoms, Ions, and Chemical Bonds

Concept: An understanding of the structure and function of the human body requires some familiarity with the basic concepts and terminology of chemistry. A knowledge of atomic and molecular structure, the nature of chemical bonds, and the nature of pH and associated concepts provides the foundation for much of human physiology.

II. Carbohydrates and Lipids

Concept: Carbohydrates are a class of organic molecules that includes monosaccharides, disaccharides, and polysaccharides. All of these molecules are based on a characteristic ratio of carbon, hydrogen, and oxygen atoms. Lipids are a category of diverse organic molecules that share the physical property of being nonpolar and thus insoluble in water.

III. Proteins

Concept: Proteins are large molecules composed of amino acid subunits. Since there are 20 different types of amino acids that can be used in constructing a given protein, the variety of protein structures is immense. This variety allows each type of protein to perform very specific functions.

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