Concept:Mitochondria produce ATP, so ribosomes produce proteins. This analogy links an organelle to its main product.Explanation:Mitochondria break down food to release energy. This energy is stored as ATP molecules. Hence, mitochondria are called the powerhouse of the cell.Ribosomes are the site of protein synthesis. They assemble amino acids into proteins. Proteins are essential for cell repair and chemical processes.Therefore, ribosomes produce proteins just as mitochondria produce ATP.