https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/cell-structures-and-their-functions/v/mitochondria-video 2022-11-16T04:22:43.7414897Z Mitochondria Mitochondria are organelles that contain their own DNA, and have both inner and outer membranes. Mitochondria are often referred to as the "powerhouses of the cell" because they are responsible for producing most of the cell's energy in the form of ATP. According to the endosymbiont theory, mitochondria began as separate bacteria that were absorbed into another cell for their energy-producing capabilities. video https://cdn.kastatic.org/googleusercontent/S5WqTBjP99Zsg1Ymfi8hS3_dAjI2pA5Vdz43G-jCpGNNty3UH8MA-4g8716ltXjJQkjRIQr9kZ1fTgLDILB87XI Mitochondria Mitochondria are organelles that contain their own DNA, and have both inner and outer membranes. Mitochondria are often referred to as the "powerhouses of the cell" because they are responsible for producing most of the cell's energy in the form of ATP. According to the endosymbiont theory, mitochondria began as separate bacteria that were absorbed into another cell for their energy-producing capabilities. https://cdn.kastatic.org/ka-youtube-converted/i1dAnpSFbyI.mp4/i1dAnpSFbyI.mp4 861 Mitochondria and plastids https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/cell-structures-and-their-functions/e/cell-structures-and-their-functions-exercise 2026-04-05T18:28:15.377289243Z Cell structures and their functions Test your knowledge of cell structures and their functions! Ashley Mucha exercise https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:cell-structure-and-function/a/cell-parts-that-capture-and-release-energy 2026-03-18T10:10:31.931963487Z Cell parts that capture and release energy Learn about how mitochondria and chloroplasts help capture and release energy in cells. article https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/cell-compartmentalization-and-its-origins/a/chloroplasts-and-mitochondria 2026-01-28T06:30:36.172736652Z Mitochondria and chloroplasts Structure and function of mitochondria and chloroplasts. Endosymbiosis. article