Life: The Science of Biology
Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 47, Problem 1Q
Summary Introduction

To review:

The effects of rigorous exercise on muscle glycogen, blood glucose, and carbohydrate utilization in the given two trials.

Given:

A group of seven trained cyclists was included in two cycling trials. On day 1, the athletes were given flavored water (a placebo) at 20 minutes interval throughout the trial. On day 2, the athletes were administered with glucose, again at every 20 minutes interval throughout the trial. The levels of the muscle glycogen and the time taken by muscles to get tired were recorded and are shown in the Table 1.

Table 1: Time taken by the muscles to get tired in response to different drinks.

Types of drinks ingested by athletes Levels of muscle glycogen at the starting (0 hours) Levels of muscle glycogen after 2 hours of cycling Levels of muscle glycogen after 3 hours of cycling Levels of muscle glycogen after 4 hours of cycling Time taken by muscles to get fatigued (hours)
Flavored water) Place bo 163 ± 13 60 ± 9 37 ± 5 No data 3.02 ± 0.19
Glucose Solution 173 ± 11 71 ± 11 44 ± 12 39 ± 8 0 4.02 ± 0.33
P = 0.27 P = 0.22 P = 0.30 P = 0.01

Introduction:

Glucose is the source of adenosine triphosphate (ATP) that provides energy by hydrolyzing its phosphate bonds. The glucose is used as a metabolic fuel to carry out the various physiological processes inside the body. The ATPs produced by the glycolytic pathway produces a tremendous amount of energy.

Expert Solution & Answer
Check Mark

Explanation of Solution

The probability value (P-value) indicates whether a given data claimed by the experimenter could be accepted or rejected. The data claimed by an experimenter is also known as a null hypothesis. When the P-value is found less than 0.05, the null hypothesis gets rejected. Whereas, if the P-value is found greater than 0.05, the null hypothesis gets accepted.

The given data indicates that glucose level falls after rigorous cycling, but if the glucose is supplied externally, glucose levels were maintained for some time, thereby providing energy. The level of glycogen in muscles remains constant since no breakdown of glycogen is required in case of external administration of glucose. The internal carbohydrates are utilized less frequently because of the presence of externally ingested glucose.

Conclusion

Thus, the P-value greater than 0.05 signifies that the external administration of glucose increase the glucose level in the blood and maintains the muscles’ glycogen level. The carbohydrate degradation also stops as energy is already provided by the external glucose.

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
What are the three major mechanisms by which exercise increases glycolytic rate?
Is it safe to drink green tea after drinking whey protein shake for post workout? If it is, what are the benefits of combining the two?
Explain the types of carbohydrates and fats used during increasing intensities of exercise and during prolonged exercise of moderate intensity?
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.
Recommended textbooks for you
Text book image
Nutritional Sciences: From Fundamentals to Food, ...
Health & Nutrition
ISBN:9781337486415
Author:McGuire
Publisher:Cengage
Text book image
Basic Clinical Laboratory Techniques 6E
Biology
ISBN:9781133893943
Author:ESTRIDGE
Publisher:Cengage
Text book image
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
Text book image
Body Structures & Functions
Biology
ISBN:9781285695495
Author:Scott
Publisher:Cengage
Text book image
Body Structures & Functions Updated
Biology
ISBN:9780357191606
Author:Scott
Publisher:Cengage
KINE 2310-Chapter 4: Philosophy of Physical Activity; Author: HBU Online Course Development;https://www.youtube.com/watch?v=8Ky6t3nvP_4;License: Standard youtube license