A Grocery Store is like a Cell- Registers/Mitochondria

The Registers are like Mitochondria

The mitochondria (singular mitochondrion) are considered to be the "powerhouses" of the cell. This is because it releases energy from the breakdown of foods into the cell in a process called cellular respiration. The mitochondria are oval shaped and located pretty much anywhere within the cytoplasm of a cell. There are usually more than one mitochondrion in a cell. The cash registers in a grocery store scan merchandise, total the cost, and release it to the consumers. This relates to mitochondria because the scanning and calculating the costs can be compared to the breakdown of foods in a cell, and the release of the merchandise to the consumers is like how a mitochondrion releases energy to the cell.