1. Fuel: Mitochondria primarily use glucose (a sugar) as their fuel source. This glucose is broken down into pyruvate during glycolysis, which occurs in the cytoplasm.
2. Oxygen: Mitochondria need oxygen to complete the process of cellular respiration, specifically in the electron transport chain. This is why we breathe!
3. Electron Carriers: The electron transport chain relies on NADH and FADH2, which are electron carriers generated during glycolysis and the Krebs cycle (also known as the citric acid cycle). These carriers bring high-energy electrons to the electron transport chain, powering the pumping of protons across the inner mitochondrial membrane.
4. Enzymes and Proteins: The entire process of cellular respiration requires a multitude of enzymes and proteins, which catalyze the reactions and facilitate the movement of molecules.
5. ADP and Phosphate: Mitochondria use ADP (adenosine diphosphate) and inorganic phosphate to produce ATP.
6. Proton Gradient: The electron transport chain creates a proton gradient across the inner mitochondrial membrane. This gradient is the driving force behind the production of ATP by ATP synthase.
In summary, mitochondria need fuel, oxygen, electron carriers, enzymes and proteins, ADP and phosphate, and a proton gradient to produce ATP.
