QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
"Which one of the following best describes the sliding filament theory?
A. The sliding filament theory explains muscle contraction.
B. The sliding filament theory describes how light travels.
C. The sliding filament theory is a theory of chemical reactions.
D. The sliding filament theory is about geological plate movement."
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Answer
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Step 1: Understand the question and the provided options.
The question asks for the best description of the sliding filament theory. We need to choose the correct option among the given choices.
Step 2: Recall the definition of the sliding filament theory.
The sliding filament theory is a theory that describes how muscles contract at the molecular level. It explains that muscle contraction occurs when thick and thin filaments slide past each other, reducing the length of the sarcomere.
Final Answer
The sliding filament theory explains muscle contraction.
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