3. When is energy released from ATP? A A chemical bond is broken and a phosphate is removed. B A chemical bond is broken and a phosphate is added. C A chemical bond is formed as a phosphate is removed D A chemical bond is formed as a phosphate is added.

## Step 1<br />Adenosine Triphosphate (ATP) is a molecule that carries energy within cells. It is composed of three parts: an adenine molecule, a ribose sugar, and three phosphate groups.<br /><br />## Step 2<br />The energy in ATP is stored in the bonds between the phosphate groups. The energy is released when one of these bonds is broken.<br /><br />## Step 3<br />When a bond is broken, a phosphate group is removed from the ATP molecule. This process is known as hydrolysis.<br /><br />## Step 4<br />The breaking of the bond and the removal of a phosphate group convert ATP into Adenosine Diphosphate (ADP). This process releases energy that can be used by the cell for various functions.