Digestive juices and many necessary steps for digestion before digestion is complete. Juices contain digestive enzymes. Enzymes work specifically. The nutrient that bio x4 they degrade called the substrate. What the enzymes make of it is the product. As an example of the step-wise degradation by digestive enzymes is below the example of the digestion of starch to glucose, but also fats and proteins are digested in a ...
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