After reading the paragraph below, answer the questions that follow.
When sarcomeres contract, they generate force (tension). However, the amount of force generated depends on the sarcomere length and the amount of thick and thin filament overlap. Below is a figure that details the force-generating properties of a single sarcomere. This figure was modified from a scientific paper by Al Gordon and colleagues from 1966 and is a classic illustration of the relationship between sarcomere length and force.
Mammalian muscles can shorten approximately 35% of their resting length when all sarcomeres contract. If a sarcomere passes through maximal tension generation during this 35% contraction, what is the likely starting point for contraction of a sarcomere?
◦ point A
◦ point B
◦ point D
◦ point E
(C) Relaxed and contracted sarcomeres.
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