Final answer:
The cell gets its energy for active transport processes from cellular respiration, where glucose and oxygen react to form carbon dioxide and water, releasing energy.
Step-by-step explanation:
The cell gets energy for active transport processes from Cellular respiration. Cellular respiration is the process by which cells break down glucose molecules to release energy and form molecules of ATP. This process involves multiple steps such as Glycolysis, Transformation of Pyruvate, Krebs Cycle, and Oxidative phosphorylation. Overall, in cellular respiration, glucose and oxygen react to form carbon dioxide and water, releasing energy that is used for active transport processes.