Machines operate through electricity which is a form of energy. For a biological machine to work, ATP functions as the energy currency of the cell. What is this short-term energy carrier? Why do we use ATP for restoring energy but not another molecule?

Explanation

**Step-by-Step Solution:**

1. **Identify the Short-term Energy Carrier:**
The short-term energy carrier in biological systems is ATP, which stands for adenosine triphosphate. It consists of an adenine base, a ribose sugar, and three phosphate groups.

2. **Structure of ATP:**
ATP has a stable structure that includes three phosphate groups. The bonds between these phosphate groups store energy, which can be released when the bonds are broken.

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