A)Fill in the blanks below regarding sarcomeres: In a sarcomere, thin filaments are composed of................. proteins while thick filaments are composed of.................. proteins. The H-band/zone of a sarcomere contains only........................ filaments. Before a muscle contraction, calcium ions are stored in the .................. that surrounds the sarcomere. When released, calcium binds to................. proteins to displace them so myosin can bind to actin.
A)Fill in the blanks below regarding sarcomeres: In a sarcomere, thin filaments are composed of................. proteins while thick filaments are composed of.................. proteins. The H-band/zone of a sarcomere contains only........................ filaments. Before a muscle contraction, calcium ions are stored in the .................. that surrounds the sarcomere. When released, calcium binds to................. proteins to displace them so myosin can bind to actin.
Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter8: Muscle Physiology
Section8.2: Molecular Basis Of Skeletal Muscle Contraction
Problem 1CYU
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A)Fill in the blanks below regarding sarcomeres:
In a sarcomere, thin filaments are composed of................. proteins while thick filaments are composed of.................. proteins.
The H-band/zone of a sarcomere contains only........................ filaments.
Before a muscle contraction, calcium ions are stored in the .................. that surrounds the sarcomere.
When released, calcium binds to................. proteins to displace them so myosin can bind to actin.
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