To release energy from an ATP molecule, a phosphate group must be added to an ATP molecule.

a phosphate group must be removed from an ATP molecule.

a glucose molecule must be broken down.

a glucose molecule must be formed.
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To release energy from an ATP molecule, a phosphate group must be removed from an ATP molecule.

Explanation:

ATP is a molecule responsible for the storage, transport and transfer of energy necessary for metabolic reactions. It is a molecule formed by adenine, a ribose and three phosphate groups. The bonds between the phosphate groups are high-energy bonds.

When a phosphate group separates from the ATP molecule, the rupture of the linkage produces the release of energy —equivalent to 30.5 kJ/mol— which is used by the organism to fulfill its vital functions.

The other options are not correct because:

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