Biology · Locomotion and Movement - Muscle Contraction Structure
Regarding the structural composition of thick and thin filaments in a striated muscle fiber, consider the following statements: (A) Thin filament is made up of F-actin, tropomyosin, and troponin. (B) Tropomyosin remains wrapped around myosin molecules in thick filaments. (C) Myosin head of the thick filament forms a cross-bridge at the active site present on thin filaments. Select the CORRECT statement(s):
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(A) and (B) only
- 2(A) and (C) only✓
- 3(B) and (C) only
- 4All of the above
Correct answer
(A) and (C) only
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