APFIVE Sodium-Potassium Pump Net Ion Flow
The sodium-potassium pump transports 3 Na⁺ ions out of a cell and 2 K⁺ ions into the cell during each cycle of operation. If the pump completes 1,000 cycles per second, which of the following statements correctly describes the net movement of ions?
A
No net movement of ions occurs.
B
1000 ions are net moved out per second.
C
2000 ions are net moved out per second.
D
There is a net movement of 1000 ions into the cell per second.
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