Which organelle is known as powerhouse of cell and why?

Mitochondria have their own DNA and double membrane, which allows efficient energy production and regulation.

The mitochondrion is known as the powerhouse of the cell because it produces ATP (adenosine triphosphate), the energy currency of the cell, through cellular respiration.

They are also involved in metabolic pathways, apoptosis, and calcium signaling, making them central to cell life.

Without mitochondria, cells would lack sufficient energy, leading to impaired cellular functions and eventual cell death.

Fun fact: The number of mitochondria in a cell varies with energy needs — muscle and liver cells have thousands, while skin cells have fewer.

It converts nutrients like glucose and fatty acids into energy that powers various cellular activities such as growth, repair, and movement.