Here's why:
* Digestion is the breakdown of food into smaller molecules that the body can absorb.
* Absorption is the process by which these smaller molecules (like glucose, amino acids, and fatty acids) are taken up from the digestive tract and transported into the bloodstream.
* Cells then use these absorbed nutrients for energy, growth, and repair.
Example:
Imagine you eat a sandwich. Your digestive system breaks down the bread, meat, and cheese into smaller molecules like glucose, amino acids, and fatty acids. These molecules are then absorbed into the bloodstream through the small intestine. Finally, cells throughout your body take up these nutrients from the bloodstream and use them for their various functions.
