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Question
Which of the following sarcomeric protein help the sarcomere to spring after recoil and prevent overstretching
Options:
A .  Tropomyosin 
B .  Actin molecule 
C .  Myosin molecule
D .  Titin 
Answer: Option D
:
D
Titinis a large abundantproteinof striated muscle.Titin'sprimaryfunctionsare to stabilize the thick filament, center it between the thin filaments, prevent overstretching of thesarcomere, and to recoil thesarcomerelike a spring after it is stretched.
Muscles contract through theactionof two proteins calledactinandmyosin along with regulatory proteins tropomyosin and troponin, control your voluntary movements.

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