Digestion is the process of breaking down the nutrients in your food. This is so the nutrients can be absorbed.
Big molecules are broken down into smaller ones:
- The aim of breaking down food is so that all the nutrients can get from your food into your blood.
- The big chunks of food are digested by chewing and churning it in the mouth. This means it is physically digested.
- The molecules that are too big to pass through the cell membrane are broken down by chemical digestion.
- To do chemical digestion, it requires enzymes. Enzymes are biological catalysts that break down the bigger molecules into smaller ones.
There are three main types of digestive enzymes:
- Carbohydrases break down the large carbohydrates into smaller ones. For example, starch is broken down into simple sugars.
- These convert proteins into amino acids.
- Proteases are…