Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 39.1, Problem 2CC
WHAT IF? Why are the muscles of an animal that has recently died likely to be stiff?
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WHAT IF? When using your arms to lower yourself intoa chair, you bend your arms without using your biceps.Explain how this is possible. (Hint: Think about gravityas an antagonistic force.)
Vhat are the two types of muscle movement categories? Give an example for both.
Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us about muscle
contraction?
What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcomeres in
the model (be specific).
Describe how an action potential triggers muscle contraction. Know the specific molecules involved.
. Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are the
three types of skeletal muscle fibers and how do they differ in structure and function?
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1. What are the two types of muscle movement categories? Give an example for both.
2. Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us about muscle
contraction?
3. What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcomeres in
the model (be specific).
4. Describe how an action potential triggers muscle contraction. Know the specific molecules involved.
5. Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are the
three types of skeletal muscle fibers and how do they differ in structure and function?
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Chapter 39 Solutions
Campbell Biology In Focus
Ch. 39.1 - Contrast the role of Ca2+ in the contraction of a...Ch. 39.1 - WHAT IF? Why are the muscles of an animal that has...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - Prob. 2CCCh. 39.2 - Prob. 3CCCh. 39.3 - Prob. 1CCCh. 39.3 - MAKE CONNECTIONS How is the lunar-linked rhythm of...Ch. 39.4 - How might associative learning explain why...Ch. 39.4 - Prob. 2CC
Ch. 39.4 - MAKE CONNECTIONS How might a learned behavior...Ch. 39.5 - Prob. 1CCCh. 39.5 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 39.6 - Prob. 1CCCh. 39.6 - Prob. 2CCCh. 39 - During the contraction of a vertebrate skeletal...Ch. 39 - Prob. 2TYUCh. 39 - According to Hamiltons rule, A. natural selection...Ch. 39 - The binding of calcium to the troponin complex A....Ch. 39 - Curare, a substance that blocks the acetylcholine...Ch. 39 - Prob. 6TYUCh. 39 - Prob. 7TYUCh. 39 - SCIENTIFIC INQUIRY Propose a hypothesis to explain...Ch. 39 - SCIENTIFIC INQUIRY Scientists studying scrub jays...Ch. 39 - Prob. 10TYUCh. 39 - FOCUS ON INFORMATION Learning is defined as a...Ch. 39 - SYNTHESIZE YOUR KNOWLEDGE Acorn woodpeckers...
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- The muscles of a professional sprinter are most likely to have ________. 80 percent fast-twitch muscle fibers and 20 percent slow-twitch muscle fibers 20 percent fast-twitch muscle fibers and 80 percent slow-twitch muscle fibers 50 percent fast-twitch muscle fibers and 50 percent slow-twitch muscle fibers 40 percent fast-twitch muscle fibers and 60 percent slow-twitch muscle fibersarrow_forwardSKELETAL MUSCLES IN HUMANS - What is/are the most developed skeletal muscle(s) in your body and how do you say so?- What is/are the least developed skeletal muscle(s) in your body and how do you say so?- As a bipedal tetrapod, what are the muscles that are naturally developed in humans? *Provide citation for answerarrow_forward3. [Essay] Do you know "IceBucket challenge"? The purpose of this public welfare activity is to help the patients with amyotrophic lateral sclerosis. The main symptom of amyotrophic lateral sclerosis is that the muscles of the patients gradually shrink until they die. However, not all muscles of the patients with amyotrophic lateral sclerosis are atrophic. Combined with the knowledge of muscle tissue we have learned, please talk about the types of muscle tissue, and what are the differences in the structure and function of these muscle tissues? What type of muscle atrophy in patients with amyotrophic lateral sclerosis?arrow_forward
- Please answer fast What would be affected if the globular head of myosin was misshapen? a) The ability to bind to actin b) The ability for ATP to bind to actin c) The ability for the muscle to contract d) All of the abovearrow_forwardHello Why does a person with muscles that have a higher percentage of slow fibers have greater endurance than a person with muscles that have a lower percentage of slow fibers? Thank you!arrow_forwardWhat causes rigor mortis? Choose all that apply. Ca2+ leak out of the sarcoplasmic reticulum, which results in myosin binding to actin. No more ATP is being made. Without the binding of ATP, the myosin head will not release from actin. Voltage-gated Na+ and K+ channels continue to open and close. The somatic motor neuron continues to send signals.arrow_forward
- 23. The diagram below represents an experimental set-up to demonstrate an aspect during muscle construction. fixed support String Kymograph- Frog muscle Pivot (a) State what would happen if a solution of ATP was added to the muscle. (b) Explain why it is necessary to use muscle from a freshly killed animal. (c) Name the part of the mammal represented by: (1) pivot. (ii) string. (iii) fixed support. 4. The apparatus below were used to investigate a certain physiological process in plants.arrow_forwardMuscles are made of ... silica polyester threads calcium and phosphorous groups of cells called fibresarrow_forwardThe CrossFit workouts you and River perform consist of many bodyweight activities like pushups, pull-ups, and squats. Based on what you have been learning about muscles, what specific events are taking place at the cellular and molecular level of actin and myosin that allow you to AEROBICALLY CONTRACT muscles during these workouts? Hint! Make sure to include in your answer: Ca2+, sliding filament model, and ATParrow_forward
- 1. What are the two types of muscle movement categories? Give an example for both. 2. Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us abc ard contraction? 3. What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcc the model (be specific). 4. Describe how an action potential triggers muscle contraction. Know the specific molecules involved. 5. Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are ardings ine E- three types of skeletal muscle fibers and how do they differ in structure and function? Library arly Alert « Previous Next MacBook Proarrow_forwardUsing the biceps brachii as an example, describe the biochemical and mechanochemical series of events that enables motor neurons to trigger muscle contraction. Thank you!arrow_forwardExplain in your own words: How and why are avian and human muscles different?arrow_forward
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