| A | B |
|---|
| Respiration | Process by which cells use oxygen to convert sugars to carbon dioxide and water. |
| Enzyme | A biological catalyst that causes a reaction to occur or speeds up a reaction without being changed by the reaction. |
| Digestive System | System that breaks down food into simple molecules that can be absorbed by the body. |
| Mouth | Part of the digestive system that starts starch digestion. |
| Esophagus | Long narrow tube that allows food to pass from the mouth to the stomach. |
| Stomach | Part of the digestive system where protein digestion begins. |
| Small Intestine | Part of the digestive system where final digestion of carbohydrates, fats, and proteins. Absorption of digested food into the blood takes place here as well. |
| Large Intestine | Part of the digestive system that absorbs water into the bloodstream and stores solid waste. |
| Duodenum | Upper part of the small intestine that converts fats to fatty acids and glycerol, starch and two-unit sugars to one unit sugars and proteins units to amino acids. |
| Liver | Large oragn that lies above the stomach, secretes bile for digestion of fats, and stores excess glucose in the form of glycogen. |
| Gall Bladder | A small sac in which bile is stored. |
| pH Scale | Measurement system that 0-14 and indicates the relative concentrations of bases and acids. |
