Atoms with a covalent bond
The correct answer is phosphorylation. When an ADP (Adenine Diphosphate) molecule gains a phosphate, it becomes an (Adenine Triphosphate) molecule. This process is called a phosphorylation. Phosphorylation and its counterpart dephosphorylation change many proteins in terms of its functions and activities.
What is the chart? Can you show us what it says?
The light-independent (or dark reaction) produces sugar-phosphate molecules, which are used as an important reactant in cellular respiration. Hope this helps!