The loss of the adenosine triphosphate (ATP)during ischemia causes cells to:
A) Shrink because of the influx of calcium (Ca).
B) Shrink because of the influx of potassium chloride (KCl).
C) Swell because of the influx of sodium chloride (NaCl).
D) Swell because of the influx of nitric oxide (NO).

Question

Quizplus · Accepted Answer

A reduction in ATP levels causes the plasma membrane's sodium-potassium (Na⁺-K⁺)pump and sodium-calcium exchange to fail,which leads to an intracellular accumulation of sodium and calcium and diffusion of potassium out of the cell.(The Na⁺-K⁺ pump is discussed in Chapter 1.)Sodium and water can then freely enter the cell,and cellular swelling results.The other options do not accurately describe the result of ATP at the cellular level.

The Loss of the Adenosine Triphosphate (ATP)during Ischemia Causes Cells