EBK HUMAN PHYSIOLOGY
7th Edition
ISBN: 9780133983401
Author: Silverthorn
Publisher: YUZU
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Chapter 12, Problem 18RQ
Summary Introduction
To determine: The steps by which the contraction of skeletal muscles occur in the presence of ATP.
Introduction: The skeletal muscles are involved in the attachment of bones and skin. The skeletal muscles perform voluntary muscular movements. The muscle fibers require a constant supply of energy for the contraction and release. The muscles also require energy for pumping Ca2+ ions back into the sarcoplasmic reticulum.
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Explain down bellow what happens to the cell in pictures not in words:
Decreased pH in mitochondria
Increased ATP
Decreased pH in cytosol
Increased hydrolysis
Decreasing glycogen and triglycerides
Increased MAP kinase activity
Poor ion transport → For each one:→ What normally happens?→ What is wrong now?→ How does it mess up the cell?
1.) Community Diversity:
The brown and orange line represent two different plant communities.
a. Which color represents the community with a higher species richness?
b. Which color represents the community with a higher species evenness?
Relative abundance
0.1
0.04
0.001
2 4 6
8
10 12 14 16 18 20 22 24
Rank abundance
c. What is the maximum value of the Simpson's diversity index (remember, Simpson's
index is D = p², Simpson's diversity index is 1-D)?
d. If the Simpson's diversity index equals 1, what does that mean about the number of
species and their relative abundance within community being assessed?
1.) Community Diversity:
The brown and orange line represent two different plant communities.
a. Which color represents the community with a higher species richness?
b. Which color represents the community with a higher species evenness?
Relative abundance
0.1
0.04
0.001
2 4 6
8
10 12 14 16 18 20 22 24
Rank abundance
c. What is the maximum value of the Simpson's diversity index (remember, Simpson's
index is D = p², Simpson's diversity index is 1-D)?
d. If the Simpson's diversity index equals 1, what does that mean about the number of
species and their relative abundance within community being assessed?
Chapter 12 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 12 - Identify as many pairs of antagonistic muscle...Ch. 12 - Prob. 2CCCh. 12 - Prob. 3CCCh. 12 - Prob. 4CCCh. 12 - What are the three anatomical elements of a...Ch. 12 - What is the chemical signal at a neuromuscular...Ch. 12 - Prob. 7CCCh. 12 - Prob. 8CCCh. 12 - Prob. 9CCCh. 12 - Name an elastic fiber in the sarcomere that aids...
Ch. 12 - Prob. 11CCCh. 12 - Prob. 12CCCh. 12 - Prob. 13CCCh. 12 - According to the convention for naming enzymes,...Ch. 12 - Prob. 15CCCh. 12 - Prob. 16CCCh. 12 - Summation in muscle fibers means that the...Ch. 12 - Prob. 18CCCh. 12 - Which type of runner would you expect to have more...Ch. 12 - What is the response of a muscle fiber to an...Ch. 12 - Prob. 21CCCh. 12 - One study found that many world-class athletes...Ch. 12 - What is the response of a muscle fiber to an...Ch. 12 - Prob. 24CCCh. 12 - Prob. 25CCCh. 12 - Prob. 26CCCh. 12 - Prob. 27CCCh. 12 - Prob. 28CCCh. 12 - What happens to contraction if a smooth muscle is...Ch. 12 - Prob. 30CCCh. 12 - Prob. 31CCCh. 12 - Prob. 32CCCh. 12 - How can a neuron alter the amount of...Ch. 12 - Prob. 34CCCh. 12 - Prob. 35CCCh. 12 - The three types of muscle tissue found in the...Ch. 12 - Which two muscle types are striated?Ch. 12 - Which type of muscle tissue is controlled only by...Ch. 12 - Arrange the following skeletal muscle components...Ch. 12 - The modified endoplasmic reticulum of skeletal...Ch. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - List six proteins that make up the myofibrils....Ch. 12 - List the letters used to label the elements of a...Ch. 12 - Briefly explain the functions of titin and...Ch. 12 - During contraction, the __________ band remains a...Ch. 12 - Explain the sliding filament theory of...Ch. 12 - Explain the roles of troponin, tropomyosin, and...Ch. 12 - Which neurotransmitter is released by somatic...Ch. 12 - What is the motor end plate, and what kinds of...Ch. 12 - Prob. 16RQCh. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - The basic unit of contraction in an intact...Ch. 12 - The two functional types of smooth muscle are...Ch. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 23RQCh. 12 - Define muscle fatigue. Summarize factors that...Ch. 12 - Prob. 25RQCh. 12 - Prob. 26RQCh. 12 - Prob. 27RQCh. 12 - What is the role of the sarcoplasmic reticulum in...Ch. 12 - Compare and contrast: a. fast-twitch...Ch. 12 - Prob. 30RQCh. 12 - One way that scientists study muscles is to put...Ch. 12 - Prob. 32RQCh. 12 - On the basis of what you have learned about muscle...Ch. 12 - Prob. 34RQCh. 12 - Prob. 35RQ
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