BIO 203 Lecture 3: ch 2 contiued
Document Summary
Serve as fuel for the human body. Composed only of c, h, and o. Classified by size into monosaccharides, oligosaccharides, and polysaccharides. One type is a disaccharide, formed by joining two monosaccharides. Chains of monosaccharides that store energy or provide structure. The storage polysaccharide in animals is glycogen, which humans store mainly in liver and muscle cells. The storage polysaccharide in plants is starch. A structural polysaccharide made of repeating units of glucose found in cell walls of plants. Humans lack the enzyme necessary to digest cellulose. An important form of fiber in the human diet. Water-insoluble molecules made of c, h, and o. Polymers made of three fatty acids bonded to glycerol through dehydration synthesis. A glycerol head that is polar and hydrophilic (hydro: greek for water, philia: to love) and mixes with watery environments inside and outside the cell.