| A | B |
| Villi | where absorption of nutrients happens in the small intestines |
| Indicator | shows the chemical makeup of another substance |
| Enzyme | biological catalyst; proteins that make reactions in cells happen at a speed that can support life |
| Substrate | substance an enzyme works on |
| Absorption | diffusion of molecules into cells and/or fluid around cells |
| Small intestine | nutrients are absorbed from what's inside this part of the digestive system; the most chemical digestion happens here |
| Large intestine | water is absorbed from what is inside this part of the digestive system |
| Amylase | enzyme that breaks down starch |
| Starch | polymer made of glucose subunits |
| Diffusion | movement of molecules from area of high concentration to low concentration |