Please help, i need this to study, i dont get it, make the answer clear A researcher wanted to investigate the relationship between Ca2+binding proteins and the speed of relaxation. Which one should shestudy?O troponinmyosintitinactin

Answered: A researcher wanted to investigate the…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question

Please help, i need this to study, i dont get it, make the answer clear

A researcher wanted to investigate the relationship between Ca2+
binding proteins and the speed of relaxation. Which one should she
study?
O troponin
myosin
titin
actin

Expert Solution

Step 1

The contraction of the muscles can be explained by the sliding filament theory or formation of the cross-bridge cycle. Muscle fibers are made up of two protein filaments known as Myosin filaments and actin filaments. Actin filaments are attached to structures that look like the alphabet Z and the structures are called Z lines, the regions between two Z lines are called a sarcomere. The Myosin filaments have small structures called cross bridges that can attach to actin filaments almost appearing like a myosin head.