Digestion. Introduction.




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Introduction

Picture 1. Your digestive system has to cope with a whole range of foods.

Digestion means breaking down insoluble food into small soluble molecules which can be absorbed into the bloodstream. Once it has been absorbed, food can be used to do the things needed to keep the body going. Carbohydrates supply energy for the process of cellular respiration, proteins are the building blocks for the growth and repair of tissues while fats make a good energy store. Without the process of digestion, these nutrients would remain locked in food and unavailable to the body.

Contents
	There are 8 pages in this electronic resource (e-source): What's in food? Why digest? Major food groups Micronutrients Stages in digestion The digestive system Digestive disorders and their treatment Quiz
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