Question

+30 0 A B -55 -70 0 1 2 3 4

Added by William J.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Josee Pacheco

02/26/2022

Step 1

Which line on the graph represents the action potential of a cardiac muscle fiber? To determine which line represents the action potential of a cardiac muscle fiber, we need to look for characteristics specific to cardiac muscle cells. One key characteristic is Show more…

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The graph above shows two action potentials labeled A and B. Which line on the graph represents the action potential of a cardiac muscle fiber? Is the refractory period longer or shorter in cardiac muscle cells? How is this achieved by the movement of ions? How is this represented on the graph (what does the line do?)? +30 0 A B -55 -70 0 1 2 3 4