Polysaccharides are starch and cellulose. Starch is found in white rice, potatoes, white flour. Cellulose is the fibre/fiber found in plants eg celery. Disaccharides are sugars eg cane sugar and monosaccharide is glucose.
Your taste buds can't taste themselves but as gross as it sounds, if you eat other taste buds you will be able to taste them. Don't ask me what they taste like though because I don't know and don't...