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Chapter 21, Problem 15RQ
Summary Introduction

To explain: The digestion and absorption of three biomolecules including location, enzymes, and the mechanisms in tabular form.

Introduction: Digestion is a process by which the body fulfills its demand for energy to operate. The conversion of large insoluble molecules into smaller molecules is called digestion. Digestion typically consists of two parts. In one part, the large food chunks are broken down into smaller ones. In the second part, the smaller food particles are digested to the molecular level by the enzymes in chemical digestion Digestion process makes the biomolecules ready for absorption. The movement of digested particles from the lumen of the intestine to the extracellular fluid is called absorption.

Summary Introduction

To explain: The process of iron absorption.

Introduction: The absorption of minerals usually takes place through active transport. The intestinal absorption of the iron is regulated. The decrease of body concentration of iron gives rise to enhance uptake of the iron at intestine.

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