MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements regarding the sliding filament model is false?
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The sarcomere shortens.
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The A band remains constant in length.
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Actin and myosin do not shorten during contraction.
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Both actin and myosin myofilaments shorten during contraction.
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Explanation:
Detailed explanation-1: -Hence the correct answer is A) Actin and myosin filaments do not shorten but rather slide pass each other.
Detailed explanation-2: -Which of the following statements best describes the sliding filament model of contraction? Myosin binding to actin through cross bridges causes thin filaments to slide past thick filaments.
Detailed explanation-3: -Which statement describes the sliding-filament theory? The actin and myosin interact and the actin is pulled over the myosin, shortening the sarcomere.
There is 1 question to complete.