In which part of the cell does the conversion of food into energy take place?

The conversion of food into energy takes place in [D] Mitochondria. Mitochondria are specialized organelles found in eukaryotic cells responsible for cellular respiration. During cellular respiration, glucose and other organic molecules undergo a series of biochemical reactions in the mitochondria to produce ATP (adenosine triphosphate), the primary energy currency of the cell. This process involves the citric acid cycle (Krebs cycle) and oxidative phosphorylation, which occur within the mitochondrial matrix and the inner mitochondrial membrane, respectively.
Mitochondria are often referred to as the “powerhouses” of the cell due to their role in generating ATP through the oxidation of food molecules. This energy is then utilized by the cell for various metabolic processes, including growth, maintenance, and cellular activities such as muscle contraction, nerve signaling, and biosynthesis.