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 4.4, Problem 1BC
Summary Introduction
To analyze:
The three types of movements that occur during muscle contraction.
Introduction:
Muscles are the connective tissues that are widely spread throughout the body and help to provide movement and flexibility to the body. The muscles are divided into cardiac, skeletal, and visceral muscles.
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Pick the right order for muscle contraction
a) ATP attaches to myosin, muscle cell uses calcium, action potential spreads
b) Calcium release, binding sites on actin are exposedmyosin binds to actin
c) Myosin binds to actin, myosin uses calcium, cell gets shorter
d) Action potential is received , cell gets shorter, myosin grabs actin
Explain the following two statements: Muscles can only actively contract; muscle fibers lengthen passively.
A skeletal muscle motor unit
A.Is the number of muscle cells innervated by one motor neuron.
B.Is the number of motor neurons innervating one muscle cell.
C.Size determines the ability to control a muscle
D.Size determines how much a muscle contracts at any one time.
Chapter 4 Solutions
Principles of Biology
Ch. 4.1 - With regard to the origin of life, why are...Ch. 4.1 - Prob. 2CCCh. 4.1 - Prob. 3CCCh. 4.1 - Prob. 1BCCh. 4.1 - Prob. 4CCCh. 4.1 - Prob. 1TYKCh. 4.1 - Prob. 2TYKCh. 4.1 - Prob. 3TYKCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 1TYK
Ch. 4.2 - Prob. 2CCCh. 4.2 - Prob. 2TYKCh. 4.3 - Prob. 1BCCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2BCCh. 4.3 - Prob. 1TYKCh. 4.3 - Prob. 2TYKCh. 4.3 - Prob. 3TYKCh. 4.4 - Prob. 1BCCh. 4.4 - Prob. 1CCCh. 4.4 - Prob. 1TYKCh. 4.4 - Prob. 2BCCh. 4.4 - Prob. 2TYKCh. 4.4 - Prob. 3TYKCh. 4.5 - What is the function of the nuclear lamina and the...Ch. 4.5 - Prob. 1BCCh. 4.5 - Prob. 2CCCh. 4.5 - Prob. 1TYKCh. 4.5 - Prob. 2TYKCh. 4.5 - Prob. 3TYKCh. 4.6 - What is the advantage of having a highly...Ch. 4.6 - Prob. 1BCCh. 4.6 - Prob. 2CCCh. 4.6 - Prob. 1TYKCh. 4.6 - Prob. 2TYKCh. 4.7 - Prob. 1TYKCh. 4.8 - Prob. 1CCCh. 4.8 - Prob. 2CCCh. 4.8 - Prob. 3CCCh. 4.8 - Prob. 4CCCh. 4.8 - Prob. 1TYKCh. 4.8 - Prob. 2TYKCh. 4.8 - Prob. 3TYKCh. 4.9 - Which of the following could be found in a...Ch. 4.9 - Prob. 2TYKCh. 4 - The cell theory states that all living things are...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Prob. 5TYCh. 4 - Prob. 6TYCh. 4 - Prob. 7TYCh. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Prob. 10TYCh. 4 - Describe two specific ways that protein-protein...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - A principle of biology is that structure...Ch. 4 - Prob. 1CBQCh. 4 - 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_forwardMuscle contraction can occur when: is it 1,2,3,4? A bands lengthen. myosin filaments shorten. sarcomeres shorten. I bands remain unchangedarrow_forwardWhich of the following changes takes place when a skeletal muscle contracts?A. Z discs move farther apart.B. Actin filaments contract.C. Myosin filaments contract.D. Sarcomeres become shorter.arrow_forward
- Graph A in this diagram represents A) summation and tetanus of a smooth muscle fibre. C) a simple skeletal muscle twitch c) summation and tetanus of a skeletal muscle fibre. D)simple smooth muscle twitch.arrow_forwardIn the numbered list below, what are they in order from largest to smallest?1. Myofilaments2. Myofibril3. Muscle Fiber4. Fascicle5. Musclearrow_forwardIn some fitness exercises you will build muscle mass but do not train the muscle to be effective. What type of training will do that and why do people do these types of trainings?arrow_forward
- muscle cells are made up of? A. Z bars b. actin c. myosin d. myofibrilsarrow_forwardAccording to the size principle, which type of muscle fibers are recruited last during a muscle contraction? Group of answer choices: 1.) Type I 2.) type IIB 3.) Type IIAarrow_forwardWhat are some adaptations/specializations that we see in skeletal muscle fibers that increase their ability to carry out aerobic respiration to produce ATP?arrow_forward
- Discuss the 5 steps involved in voluntary muscle contraction.arrow_forwardPick the list that has the order from the smallest to the larges a) Sarcomere , Myofibrilactin , myosin b) Actin, Sarcomere, Myofibril, Muscle fiber c) Actin Sarcomere, Myofibril , Muscle, Myosin d) Muscle fiber, myofibril, actin, myosin , sarcomerearrow_forwardThe following are the basic steps of a muscle contraction: I. Neurotransmitters bind to receptors II. Myosin pulls on actin III. Ca2+ binds to troponin IV. Myosin binds to actin V. Myosin releases actin VI. Ca2+ is released/unbound Which of the following puts the steps above in the correct order?arrow_forward
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