BuyFindarrow_forward

General, Organic, and Biological C...

7th Edition
H. Stephen Stoker
ISBN: 9781285853918

Solutions

Chapter
Section
BuyFindarrow_forward

General, Organic, and Biological C...

7th Edition
H. Stephen Stoker
ISBN: 9781285853918
Textbook Problem

What is the first site within the human body where breaking of polysaccharide glycosidic bonds occurs?

  1. a. mouth
  2. b. stomach
  3. c. small intestine
  4. d. no correct response

Interpretation Introduction

Interpretation: To identify the first site where the breaking of polysaccharide glycosidic bonds occurs within the human body.

Concept introduction: Carbohydrates are the biomolecules composed of carbon, oxygen and hydrogen atoms. Carbohydrate molecules are joined together by glycosidic linkage. They are an important source of energy and thus, serve as an important part of human nutrients.

Monosaccharide, disaccharide, oligosaccharide, and polysaccharide are the classifications of carbohydrates. Monosaccharides are the simplest carbohydrate units that cannot be hydrolyzed further to give the smallest units. Disaccharides contain two monosaccharide units and on hydrolysis, it gives two monosaccharide units. Oligosaccharides contain three to ten monosaccharide units. Polysaccharides contain many carbohydrate units that vary from 100 to 50,000 monosaccharide units.

In the digestion process, the food molecules break down into small chemical units through hydrolysis. These small chemical units are used by cells present in the body for their metabolic processes. An overview of carbohydrate digestion in humans is as follows:

images

Saliva is a fluid secreted by the salivary glands. It contains 99% water, organic molecules, and a small amount of inorganic ions. Salivary αamylase is a constituent of saliva.

Explanation

Reason for correct choice:

The salivary αamylase enzymes are present in the mouth that catalyzes the hydrolysis of αglycosidic linkages present in the carbohydrate molecules. The larger carbohydrates molecules are converted to smaller polysaccharide molecules and maltose, a disaccharide. Food is swallowed very quickly, therefore, a small amount of digestion of carbohydrates begins in the mouth. Since the mouth is the first site where the breaking of polysaccharide glycosidic bonds occurs within the human body. Hence, the correct option is (a).

Reason for incorrect choice:

The environment of the stomach is acidic and the salivary αamylase enzymes are inactivated by the acidic environment

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 24 Solutions

Show all chapter solutions add
Sect-24.2 P-6QQSect-24.2 P-7QQSect-24.3 P-1QQSect-24.3 P-2QQSect-24.3 P-3QQSect-24.3 P-4QQSect-24.3 P-5QQSect-24.4 P-1QQSect-24.4 P-2QQSect-24.4 P-3QQSect-24.5 P-1QQSect-24.5 P-2QQSect-24.5 P-3QQSect-24.6 P-1QQSect-24.6 P-2QQSect-24.6 P-3QQSect-24.6 P-4QQSect-24.6 P-5QQSect-24.7 P-1QQSect-24.7 P-2QQSect-24.8 P-1QQSect-24.8 P-2QQSect-24.8 P-3QQSect-24.9 P-1QQSect-24.9 P-2QQSect-24.10 P-1QQSect-24.10 P-2QQSect-24.10 P-3QQCh-24 P-24.1EPCh-24 P-24.2EPCh-24 P-24.3EPCh-24 P-24.4EPCh-24 P-24.5EPCh-24 P-24.6EPCh-24 P-24.7EPCh-24 P-24.8EPCh-24 P-24.9EPCh-24 P-24.10EPCh-24 P-24.11EPCh-24 P-24.12EPCh-24 P-24.13EPCh-24 P-24.14EPCh-24 P-24.15EPCh-24 P-24.16EPCh-24 P-24.17EPCh-24 P-24.18EPCh-24 P-24.19EPCh-24 P-24.20EPCh-24 P-24.21EPCh-24 P-24.22EPCh-24 P-24.23EPCh-24 P-24.24EPCh-24 P-24.25EPCh-24 P-24.26EPCh-24 P-24.27EPCh-24 P-24.28EPCh-24 P-24.29EPCh-24 P-24.30EPCh-24 P-24.31EPCh-24 P-24.32EPCh-24 P-24.33EPCh-24 P-24.34EPCh-24 P-24.35EPCh-24 P-24.36EPCh-24 P-24.37EPCh-24 P-24.38EPCh-24 P-24.39EPCh-24 P-24.40EPCh-24 P-24.41EPCh-24 P-24.42EPCh-24 P-24.43EPCh-24 P-24.44EPCh-24 P-24.45EPCh-24 P-24.46EPCh-24 P-24.47EPCh-24 P-24.48EPCh-24 P-24.49EPCh-24 P-24.50EPCh-24 P-24.51EPCh-24 P-24.52EPCh-24 P-24.53EPCh-24 P-24.54EPCh-24 P-24.55EPCh-24 P-24.56EPCh-24 P-24.57EPCh-24 P-24.58EPCh-24 P-24.59EPCh-24 P-24.60EPCh-24 P-24.61EPCh-24 P-24.62EPCh-24 P-24.63EPCh-24 P-24.64EPCh-24 P-24.65EPCh-24 P-24.66EPCh-24 P-24.67EPCh-24 P-24.68EPCh-24 P-24.69EPCh-24 P-24.70EPCh-24 P-24.71EPCh-24 P-24.72EPCh-24 P-24.73EPCh-24 P-24.74EPCh-24 P-24.75EPCh-24 P-24.76EPCh-24 P-24.77EPCh-24 P-24.78EPCh-24 P-24.79EPCh-24 P-24.80EPCh-24 P-24.81EPCh-24 P-24.82EPCh-24 P-24.83EPCh-24 P-24.84EPCh-24 P-24.85EPCh-24 P-24.86EPCh-24 P-24.87EPCh-24 P-24.88EPCh-24 P-24.89EPCh-24 P-24.90EPCh-24 P-24.91EPCh-24 P-24.92EPCh-24 P-24.93EPCh-24 P-24.94EPCh-24 P-24.95EPCh-24 P-24.96EPCh-24 P-24.97EPCh-24 P-24.98EPCh-24 P-24.99EPCh-24 P-24.100EPCh-24 P-24.101EPCh-24 P-24.102EPCh-24 P-24.103EPCh-24 P-24.104EPCh-24 P-24.105EPCh-24 P-24.106EPCh-24 P-24.107EPCh-24 P-24.108EPCh-24 P-24.109EPCh-24 P-24.110EPCh-24 P-24.111EPCh-24 P-24.112EPCh-24 P-24.113EPCh-24 P-24.114EPCh-24 P-24.115EPCh-24 P-24.116EPCh-24 P-24.117EPCh-24 P-24.118EP

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Most of the time, the buyer is wasting his or her money when buying an ergogenic aid to improve performance. St...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

How does astronomy help answer the question “What are we?”

Horizons: Exploring the Universe (MindTap Course List)

Why do we use different map projections?

Fundamentals of Physical Geography

Contrast the three main clades of mammals.

Biology (MindTap Course List)