Final answer:
Glucose is converted into ATP through the process of cellular respiration, which occurs in the mitochondria of cells. The correct option is D.
Step-by-step explanation:
Mitochondria are frequently referred to as the "powerhouses" or "energy factories" of the cell, given their role in synthesizing adenosine triphosphate (ATP), which is the primary energy-carrying molecule within the cell. The process by which glucose is converted into ATP is known as cellular respiration.
During cellular respiration, glucose is broken down in the presence of oxygen to produce ATP, water, and carbon dioxide as a byproduct. This complex process, which occurs in the mitochondria, is vital for the production of ATP, and thereby for providing the energy necessary for various cellular functions.