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Digestion
All food is broken down before digestion.
Chemical Breakdown is the digestion of food being broken down by bones and physically.
The food gets digested. Digestion is the process of food being broken down in your body, and turned into energy your body can use.
chemical and physical weathering
The small bowel absorbs nutrients from food but first it must be broken down into amino acids ie: proteins, carbohydrates, fibre etc... before being transported round the body.
Achlorydia or hypochlorydia, where there is not enough stomach acid production to break food down. Food can therefore leave the stomach without being properly broken down and enter the intestinal tract as undigested food, contributing to incomplete digestion.
The small intestines are important in the digestive system. There are small finger like structures in the Small intestines called villi, these villi extract the nutrients and take it into the blood stream. Without the small intestines you would not be able to extract nutrients from the food.
Cellular Respiration.
The nutrients that do not need to be digested they have to be smaller than the cells of the small intestine. Some of these are sugars and amino acids.
Weakness in muscles and sometimes brain defunction.
Chlorella would just pass thru our bodies without the cell wall being broken because it has an undigestable cellulose outer shell on each cell. So upon breaking the cell wall it unleashes the inner nutrients.