4h (edited) • CSCS Daily Practice Question
CSCS Daily Practice Question #91
Why does the instantaneous force produced by a muscle depend on the number of crossbridges formed between actin and myosin?
A. Crossbridges store elastic energy in sarcomeres that is released during contraction
B. More crossbridges allow more simultaneous power strokes, each contributing to total force
C. Crossbridges anchor myosin to actin, preventing filament separation
Answer in the poll, then explain your rationale below in the comments! I'll follow up with my breakdown of the question after enough people have responded.
From Chapter 1: Structure and Function of Body Systems
DCO Code: 1.D1
NOTE: Image is for illustration purposes, not needed to answer the question.
A. Crossbridges store elastic energy in sarcomeres that is released during contraction
B. More crossbridges allow more simultaneous power strokes, each contributing to total force
C. Crossbridges anchor myosin to actin, preventing filament separation
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CSCS Daily Practice Question #91
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