Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 35, Problem 8TY
Summary Introduction
Introduction:
The red muscle fibers are the skeletal muscles that are rich in capillaries, myoglobin, and mitochondria. Capillaries deliver oxygen to the muscles, and oxygen is taken up by the protein called myoglobin. The myoglobin helps the mitochondria to provide the oxygen. Mitochondria use oxygen to produce energy.
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Muscle fibers that have a high number of mitochondria, contain largeamounts of myoglobin, and exhibit low rates of ATP hydrolysis arecalled __________ fibers.a. slow-glycolyticb. fast-glycolyticc. intermediated. fast-oxidativee. slow-oxidative
Chapter 35 Solutions
Principles of Biology
Ch. 35.1 - Prob. 1CCCh. 35.1 - Prob. 1TYKCh. 35.1 - Prob. 2TYKCh. 35.2 - Prob. 1CCCh. 35.2 - Rigor mortis is the condition that occurs shortly...Ch. 35.2 - Prob. 1BCCh. 35.2 - Prob. 3CCCh. 35.2 - Prob. 2BCCh. 35.2 - Prob. 1TYKCh. 35.2 - Prob. 2TYK
Ch. 35.3 - Prob. 1TYKCh. 35.4 - Prob. 1TYKCh. 35.4 - Prob. 2TYKCh. 35 - Prob. 1TYCh. 35 - Which, if any, of the following is not a function...Ch. 35 - Prob. 3TYCh. 35 - Prob. 4TYCh. 35 - Prob. 5TYCh. 35 - During cross-bridge cycling, binds to _________,....Ch. 35 - Prob. 7TYCh. 35 - Prob. 8TYCh. 35 - Prob. 9TYCh. 35 - Prob. 10TYCh. 35 - Prob. 1CCQCh. 35 - Prob. 2CCQCh. 35 - Prob. 3CCQCh. 35 - Discuss the structure and function of the two...Ch. 35 - Prob. 2CBQ
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- Skeletal muscle contraction requires _________. a. calcium ions b. ATP c. arrival of a nerve impulse d. all of the abovearrow_forwardFigure 38.37 Which of the following statements about muscle contraction is true? The power stroke occurs when ATP is hydrolyzed to ADP and phosphate. The power stroke occurs when ADP and phosphate dissociate from the myosin head. The power stroke occurs when ADP and phosphate dissociate from the actin active site. The power stroke occurs when Ca2+ binds the calcium head.arrow_forwardThe _____ is the basic unit of muscle contraction. a. myofibril b. sarcomere c. muscle fiber d. myosin filamentarrow_forward
- Why do you think a person is able to perform anaerobic exercise (such as lifting and holding a heavy weight) only briefly but can sustain aerobic exercise (such as walking or swimming) for long periods? (Hint: Muscles have limited energy stores.)arrow_forwardNerve impulses first stimulate a skeletal muscle fiber at _______. a. T tubules b. sarcomeres c. neuromuscular junctions d. actin binding sitesarrow_forwardAfter death, a person no longer makes ATP, so calcium stored in the sarcoplasmic reticulum diffuses down its concentration gradient into the muscle cytoplasm. This result is rigor mortis----an unbreakable state of muscle contraction that stiffens the body for a few days until muscles begin to decay. Explain why this contraction occurs.arrow_forward
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