Muscle fibers differ in speed, power, and duration of muscle contraction. The speed of the muscle contraction is based on the expression of fast or slow genetic variation of myosin ATPase. The fast variants are known as fast-twitch fibers and slow variants are known as slow-twitch fibers.

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Answer 1

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 10, Problem 5CAL

Summary Introduction

Introduction:

Muscle fibers differ in speed, power, and duration of muscle contraction. The speed of the muscle contraction is based on the expression of fast or slow genetic variation of myosin ATPase. The fast variants are known as fast-twitch fibers and slow variants are known as slow-twitch fibers.

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The 100 meter dash is a quick and short run requiring explosive speed. On completion of the dash the runners will continue to breathe hard for several seconds to minutes even though they are no longer running. Which of the following is the best explanation for why this is so? a.Slow oxidative fibers are recruited last and have only started to work at completion of the run. b.The runners' fast oxidative muscles are so slow to utilize oxygen it only begins aerobic respiration by the time the run has finished. c.The runners' use of stored oxygen, glucose and creatine phosphate is being replenished and this requires a prolonged increase of oxygen intake. d. Since the exercise was mostly aerobic exercise, the runners' bodies have not yet realized

During vigorous effort in muscle cells, ATP stores are quickly depleted. However, creatine phosphate can donate a phosphate to regenerate ATP to sustain effort. In other words, creatine phosphate has a higher phosphoryl transfer potential than ATP? a. False b. True

Phosphate transfer is used for A. immediate ATP needs and is dependent on oxygen. B. immediate ATP needs and is not dependent on oxygen. C. long term ATP needs and is dependent on oxygen. D. long term ATP needs and is not dependent on the presence of oxygen.

Answer 2

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 10, Problem 5CAL

Summary Introduction

Introduction:

Muscle fibers differ in speed, power, and duration of muscle contraction. The speed of the muscle contraction is based on the expression of fast or slow genetic variation of myosin ATPase. The fast variants are known as fast-twitch fibers and slow variants are known as slow-twitch fibers.

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Answer 3

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 10, Problem 5CAL

Summary Introduction

Introduction:

Muscle fibers differ in speed, power, and duration of muscle contraction. The speed of the muscle contraction is based on the expression of fast or slow genetic variation of myosin ATPase. The fast variants are known as fast-twitch fibers and slow variants are known as slow-twitch fibers.

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Check out a sample textbook solution

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Answer 4

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 10, Problem 5CAL

Summary Introduction