The main energy-producing organelles of plants are called and have two major parts.

Correct Mitochondria

Mitochondria is an organelle that is known to produce the energy currency called the ATP of the cell. The main reaction or cycle involve in that area citric acid cycle, Krebs cycle.

All animal and plant possess organelles that regulate specific function inside the cell. Mitochondria and chloroplast are energy-producing organelles inside the cell. The supply adenosine triphosphate (ATP), which provide fuel to the body for their growth.

a. the production of carbon dioxide through the process of photosynthesis