HUMAN BIOLOGY
16th Edition
ISBN: 9781260233032
Author: Mader
Publisher: RENT MCG
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Chapter 9, Problem 2TC
Summary Introduction
Case summary:
Suppose a person is taking large doses of creatine, an amino acid supplement that is advertised for its ability to enhance muscle growth. The muscle of a person can grow at a limited rate.
Adequate information:
Creatine is a chemical substance normally present in the body. It is mostly present in muscles, but a small amount of it is also present in the brain. The sources of the creatine are red meat and seafood.
To determine:
The effect of the excess of the creatine that is not used for the synthesis of new muscle.
Given information:
A person takes an amino acid supplement that contains a large dose of creatine for muscle growth.
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Suppose a person had an unusual mutation in the troponin protein of his skeletal muscles, such that the troponin could not bind to calcium. Would this person’s muscles be constantly contracted, constantly relaxed, or able to function normally? Explain.
Marathon runners often practice "carb loading" prior to a race. The purpose of this practice is to increase the stores of energy available for muscles to use. Explain how energy is used by muscle fibers and how this practice of "card loading" benefits the runner's muscles. Be sure to use the terms glucose, glycogen, creatine, phosphate, and ATP in the explanation.
Muscle contraction is the result of critical steps
characterized by conformational changes to protein
structures in the supramolecule. Which of the following
conformational changes requires energy, i.e. ATP
hydrolysis?
A. Binding of calcium to tropomyosin changing its
conformation and exposing a binding site in troponin
B. Binding of myosin to troponin resulting in the power
stroke and cross-bridge cycle of muscle contraction.
C. Disruption in the binding of the myosin head to troponin
preceding its release and relaxation back to its activated
form.
D. Binding of ATP to the myosin head bound to troponin.
Chapter 9 Solutions
HUMAN BIOLOGY
Ch. 9.1 - State the function of each organ of the...Ch. 9.1 - Prob. 2LOCh. 9.1 - Prob. 3LOCh. 9.1 - Prob. 1CYPCh. 9.1 - Prob. 2CYPCh. 9.1 - Prob. 3CYPCh. 9.2 - 1. Identity the structures of the mouth, pharynx,...Ch. 9.2 - Prob. 2LOCh. 9.2 - Prob. 3LOCh. 9.2 - Prob. 1CYP
Ch. 9.2 - Prob. 2CYPCh. 9.2 - Prob. 3CYPCh. 9.3 - Prob. 1LOCh. 9.3 - Prob. 2LOCh. 9.3 - Prob. 3LOCh. 9.3 - Prob. 1BTHCh. 9.3 - Considering that the GI tract consists of layers...Ch. 9.3 - Prob. 1CYPCh. 9.3 - Prob. 2CYPCh. 9.3 - Summarize the differences in how carbohydrates,...Ch. 9.4 - Prob. 1LOCh. 9.4 - Prob. 2LOCh. 9.4 - Prob. 3LOCh. 9.4 - Prob. 1CYPCh. 9.4 - Prob. 2CYPCh. 9.4 - Prob. 3CYPCh. 9.5 - Describe the structure and function of the large...Ch. 9.5 - Prob. 2LOCh. 9.5 - Prob. 1BTHCh. 9.5 - What factors might regulate how long the PillCam...Ch. 9.5 - Prob. 1CYPCh. 9.5 - Prob. 2CYPCh. 9.5 - Prob. 3CYPCh. 9.6 - Prob. 1LOCh. 9.6 - Prob. 2LOCh. 9.6 - What aspects of our society encourage the...Ch. 9.6 - Prob. 1.2BTHCh. 9.6 - Prob. 2.1BTHCh. 9.6 - Prob. 2.2BTHCh. 9.6 - Prob. 3.1BTHCh. 9.6 - Prob. 3.2BTHCh. 9.6 - Prob. 1CYPCh. 9.6 - Prob. 2CYPCh. 9.6 - Prob. 3CYPCh. 9 - Prob. 1ACh. 9 - Prob. 2ACh. 9 - Prob. 3ACh. 9 - Prob. 4ACh. 9 - Prob. 5ACh. 9 - Prob. 6ACh. 9 - Prob. 7ACh. 9 - Prob. 8ACh. 9 - Prob. 9ACh. 9 - Prob. 10ACh. 9 - Prob. 11ACh. 9 - Prob. 12ACh. 9 - Prob. 13ACh. 9 - Prob. 14ACh. 9 - Prob. 15ACh. 9 - A BMI of 26.7 indicates that a person is healthy....Ch. 9 - Prob. 17ACh. 9 - Prob. 18ACh. 9 - Trace all of the types and locations of enzymes...Ch. 9 - Prob. 2TC
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