Which organelle is known as the powerhouse of the cell?

A. Nucleus
B. Mitochondria
C. Golgi apparatus
D. Endoplasmic reticulum

Answer: Mitochondria


Additional Information: Mitochondria are often referred to as the powerhouse of the cell because they generate adenosine triphosphate (ATP), the energy currency of the cell. Through cellular respiration, mitochondria convert biochemical energy from nutrients into ATP, fueling various cellular activities.