ATP is used directly for each of the following processes EXCEPT one.Which one is this EXCEPTION?

A.Accumulation of Ca2+ by the sarcoplasmic reticulum

B.Transport of glucose into muscle cells

C.Transport of K+ from the extracellular to intracellular ?uid

D.Transport of Na! from the intracellular to extracellular ?uid

正确答案：Transport of glucose into muscle cells