Question

Poisons like cyanides inhibit $N{a}^{+}$ effux and $K^{+}$ influx. The effect is reversed by injection of ATP indicating that:

• A. $N{a}^{+}\to K^{+}$ pump operates in all cells
• B. ATP is carrier protein
• C. Energy for $N{a}^{+}-K^{+}$ pump comes from ATP
• D. ATP is hydrolysed by ATPase to release energy

Answer 1

Answer: (C)

The reversion of effect show that energy for $N{a}^{+}-K^{+}$ pump comes from ATP.