Human Physiology: An Integrated Approach (8th Edition)
Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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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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You eat spaghetti with tomato sauce, peas, and Parmesan cheese. Describe the path through each organ of the digestive system this meal takes, describing how EACH of the FOUR BIOMOLECULES of the meal is digested and absorbed. Discuss all of the organs and enzymes involved.
There are several processes that take place from the moment food enters our mouth until it is completely digested and used for energy.   Using approximately 400-500 words, describe in detail and in order of process the mechanical (stomach and intestine)and chemical (gastric acid and enzymes) digestion of eating a grilled chicken sandwich with mayonnaise, lettuce, and tomatoes.  Note what role the pancreas, gallbladder, and liver play in digestion of the ingredients? From what ingredients is your body deriving its energy and how many basic calories from the macronutrients ingested? Include at least two scholarly references (using APA formatting and style) to guide your answers (note that you can use your textbook as one of your references).
Describe the digestion and absorption of each macromolecule (Proteins, Lipids (large and small), Carbohydrates, DNA/RNA)
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