Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159080
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: Mcgraw-hill Education,
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 55, Problem 1PL

The enzyme amylase accelerate s the reaction of changing
a. polysaccharides into monosaccharides.
b. disaccharides into monosaccharides.
c. starch into disaccharides.
d. disaccharides into glucose.

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

Enzymes are biological catalysts that modify or speed up a specific chemical reaction. Digestion also involves many enzymatic reactions. One such reaction occurring during digestion of carbohydrate, involves the enzyme salivary amylase. Salivary amylase is secreted in the mouth and it accelerates the conversion of polysaccharides (starch) into disaccharides (sugar).

Answer to Problem 1PL

Correct answer:

The correct answer is option (c) starch into disaccharides.

Explanation of Solution

Explanation/justification for the correct answer:

Option (c) starch into disaccharides is the correct answer. Salivary amylase is a digestive enzyme that acts on starch which is a complex carbohydrate and hydrolyzes it into sugar which is a disaccharide. So, the correct answer is option (c).

Explanation for incorrect answer:

Option (a) polysaccharides into monosaccharides. Polysaccharides are first converted into disaccharides by amylase and then into monosaccharides by an intestinal enzyme called maltase. Amylase enzyme does not change polysaccharides directly into monosaccharides. So, this is an incorrect option.

Option (b) disaccharides into monosaccharides.Amylase enzyme accelerates conversion of polysaccharides into disaccharides and not disaccharides into monosaccharides. Disaccharides are changed into monosaccharides by an intestinal enzyme called maltase. So, this is an incorrect answer.

Option (d) disaccharides into glucose.Disaccharides are changed into glucose which is a monosaccharide by intestinal enzyme called maltase and not by amylase. So, this is an incorrect answer.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The functionality of carbohydrates is increased through a. formation of sugar acids b. formation of amino sugars c. formation of glycoconjugates d. formation of ester phosphates
a polysaccharide that is formed in plants to store glucose is  a. starch  b. glycogen  c. lipid d. sucrose e. fructose
Amylose and amylopectin are the fractions of starch having glucose molecules as monosaccharide units linked at the main chain. a. β1,4 b. β1,6 c. α1,6 d. α1,4
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Ebk:Nutrition & Diet Therapy
Health & Nutrition
ISBN:9780357391747
Author:DEBRUYNE
Publisher:Cengage
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Macromolecules | Classes and Functions; Author: 2 Minute Classroom;https://www.youtube.com/watch?v=V5hhrDFo8Vk;License: Standard youtube license