Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 41.3, Problem 1CSC
Summary Introduction
To determine: The advantages and disadvantages of having a child homozygous for the allele encoding for fast-twitch fibers.
Introduction: The long muscles generally contain the fast-twitch muscle fibers. There is a low requirement of the oxygen in fast-twitch muscle fibers. The mitochondria are fewer in the fast-twitch muscle fibers. The fast-twitch muscle fibers are white in color because there the level of myoglobin is low in these fibers.
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Do a little bit of reserach on each Muscular Dystrophy (MD) subtype and gather your results in the table below. To answer questions 2 and 3, use this table (attached) as a guide.
2. Select two MD subtypes from the table above to examine and contrast their similarities and differences. Questions to consider: How do they differ in their progression?Do they have an impact on various muscle groups or the same ones? Is it more probable that a woman or a man will be affected?Chosen MD Subtypes:
3. What tools are utilised to determine the presence of muscular dystrophy? When forming a particular muscular dystrophy diagnosis, why is it vital to collect different pieces of data?
Suppose myoglobin is prepared with Zn²+ in the place of Fe²+ in the porphyrin. Would you expect this modified myoglobin
to bind oxygen?
No, because Zn²+ cannot partially transfer an electron to oxygen to form a complex.
Fe²+ .
Yes, because oxygen can form a bond with either Zn²+
2+
No, because the larger size of Zn²+ will prevent the ion from fitting within the porphyrin ring.
Yes, because oxygen binding to myoglobin depends solely on the presence of a distal histidine.
or
3.4. About human skeletal muscle contraction, what are the correct statements?
PHYSIOLOGY_basic (OJO)
A muscle fiber is made by the parallel apposition of sarcomers.
Generation of force relies on the formation of cross-bridges between actin and myosin filaments.
In the process of contraction, adenosine triphosphate (ATP) is required both to drive the actin-myosin association-dissociation cycle and to recycle calcium back to the endoplasmic reticulum.
Each muscle fiber is innervated by one neuron only.
T tubules are plasma membrane invaginations of the sarcolemma that allow excitation-contraction coupling.
Chapter 41 Solutions
Biology
Ch. 41.1 - Prob. 1TCCh. 41.1 - Prob. 2TCCh. 41.1 - Prob. 1CSCCh. 41.1 - White meat or dark? It seems almost everyone has a...Ch. 41.1 - Prob. 1CYLCh. 41.1 - Prob. 2CYLCh. 41.1 - Prob. 3CYLCh. 41.1 - explain how the nervous system causes contraction...Ch. 41.2 - describe the similarities and differences between...Ch. 41.2 - compare cardiac and smooth muscle to skeletal...
Ch. 41.3 - Why are thick, armor like exoskeletons found...Ch. 41.3 - Prob. 2TCCh. 41.3 - Prob. 3TCCh. 41.3 - Prob. 1CSCCh. 41.3 - Prob. 1CTCh. 41.3 - Prob. 1CYLCh. 41.3 - Prob. 2CYLCh. 41.3 - list and describe the functions of the different...Ch. 41.3 - explain how a bone fracture is repaired and how...Ch. 41.3 - Prob. 5CYLCh. 41 - Prob. 1MCCh. 41 - Prob. 2MCCh. 41 - Prob. 3MCCh. 41 - Prob. 4MCCh. 41 - Prob. 5MCCh. 41 - The three types of skeletal systems found in...Ch. 41 - Prob. 2FIBCh. 41 - A skeletal muscle cells is called a(n)__________....Ch. 41 - Prob. 4FIBCh. 41 - Prob. 5FIBCh. 41 - Prob. 6FIBCh. 41 - Prob. 7FIBCh. 41 - Sketch a relaxed muscle fiber containing a...Ch. 41 - Describe the process of skeletal muscle...Ch. 41 - Explain the following two statements: Muscles can...Ch. 41 - What are the three types of skeletons found in...Ch. 41 - Compare the structures of the following pairs:...Ch. 41 - Explain the functions of osteoblasts and...Ch. 41 - Describe a hinge joint and how it is moved by...Ch. 41 - Discuss some of the problems that would result. If...Ch. 41 - Prob. 2AC
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