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Cellular Respiration
| Question | Answer |
|---|---|
| Cellular Respiration | the process by which sugar (chemical energy) is broken down to produce ATP (another form of chemical energy) in the presence of oxygen |
| ATP | The Cell’s Energy Carrying Molecule |
| What is the equation for cellular respiration? | C6H12O6 + 6O2 → 6H2O + 6CO2+ ATP |
| Structure of Mitochondria | Matrix: Site of the Krebs Cycle fluid filled space in mitochondria Inner Membrane: Membrane surrounding matrix Site of ETC |
| Glycolysis: | - anaerobic (without oxygen) process - occurs in the cytoplasm |
| Krebs Cycle: | - occurs within the matrix -each pyruvate molecule is broken down further to release a carbon atom -the carbon released from each pyruvate forms CO2 and is released - Energy-carrying molecules (NADH and FADH2) are made in the Krebs cycle |
| ETC | - occurs in the inner membrane - O2 enters - Energy molecules are used - ATP is made -- Hydrogens (from NADH and FADH2) combine with Oxygen to form H2O |
| Ways that cells use ATP | muscle contraction active transport electrical signaling digestion cell division |