1.But ATP is too unstable to store, so cells often store energy in the form of glucose, which they can then catabolize and convert to ATP when they need it.

是三磷酸腺苷太不稳定，无法储存，所以细通常以葡萄糖的形式储存能量，然后在需解代谢并转化为三磷酸腺苷。