Imagine an exercising muscle cell that requires a constant supply of oxygen to avoid fatigue. At which of the following distances from a capillary would you predict these muscle cells to have sufficient oxygen delivery? a) 0.5 m
b) 100 nm
c) 2 μm
d) 2 mm

b. 100nm

Explanation:

The correct answer to the given question is 100nm. Low level of oxygen is observed when active fibers are at a distance of 50m or more than 50m from the perfused capillary, this is why the correct answer to the given question is 100nm, which is the option b. in the given question.

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