Problem 5.6. A muscle can be thought of as a fuel cell, producing work from the metabolism of glucose: C6H1206 + 602 6CO2 + 6H20. (a) Use the data at the back of this book to determine the values of AH and AG for this reaction, for one mole of glucose. Assume that the reaction takes place at room temperature and atmospheric pressure. (b) What is the maximum amount of work that a muscle can perform, for each mole of glucose consumed, assuming ideal operation? (c) Still assuming ideal operation, how much heat is absorbed or expelled by the chemicals during the metabolism of a mole of glucose? (Be sure to say which direction the heat flows.) (d) Use the concept of entropy to explain why the heat flows in the direction it does. (e) How would your answers to parts (a) and (b) change, if the operation of the muscle is not ideal?
Problem 5.6. A muscle can be thought of as a fuel cell, producing work from the metabolism of glucose: C6H1206 + 602 6CO2 + 6H20. (a) Use the data at the back of this book to determine the values of AH and AG for this reaction, for one mole of glucose. Assume that the reaction takes place at room temperature and atmospheric pressure. (b) What is the maximum amount of work that a muscle can perform, for each mole of glucose consumed, assuming ideal operation? (c) Still assuming ideal operation, how much heat is absorbed or expelled by the chemicals during the metabolism of a mole of glucose? (Be sure to say which direction the heat flows.) (d) Use the concept of entropy to explain why the heat flows in the direction it does. (e) How would your answers to parts (a) and (b) change, if the operation of the muscle is not ideal?
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Musculoskeletal System
The musculoskeletal system, also called the locomotor system, is an organ system that gives humans and animals the ability to move using their muscular and skeletal systems. It provides stability, form, support, and movement to the body. The skeleton is composed of bones (skeleton), muscles, cartilage, tendons, ligaments, joints, and other connective tissue that supports and binds tissues and organs together. The musculoskeletal system is subdivided into two broad systems, such as the muscular system and the skeletal system.
Skeletal structure
The skeletal system is the core framework of the human body. The skeletal structure comprises bones and connective tissue, including cartilage, ligaments, and tendons. The skeletal structure of our body acts as a support structure. It maintains the body's shape and is responsible for its movement, blood cell formation, protection of organs, and mineral storage. The skeletal system is referred to as the musculoskeletal system.
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Transcribed Image Text:Problem 5.6. A muscle can be thought of as a fuel cell, producing work from the
metabolism of glucose:
C6H1206 + 602
6CO2 + 6H20.
(a) Use the data at the back of this book to determine the values of AH and
AG for this reaction, for one mole of glucose. Assume that the reaction
takes place at room temperature and atmospheric pressure.
(b) What is the maximum amount of work that a muscle can perform, for each
mole of glucose consumed, assuming ideal operation?
(c) Still assuming ideal operation, how much heat is absorbed or expelled by
the chemicals during the metabolism of a mole of glucose? (Be sure to say
which direction the heat flows.)
(d) Use the concept of entropy to explain why the heat flows in the direction
it does.
(e) How would your answers to parts (a) and (b) change, if the operation of
the muscle is not ideal?
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