Respiration & ATP Flashcards
Respiration
A chemical process by which energy is released from glucose using oxygen, with CO2 and water being produced as waste products
Where does respiration take place in cells?
Mitochondrion
How are mitochondrion adapted for efficient respiration?
Highly folded inner membrane creates huge surface area for production of ATP by respiration. Stroma contains all enzymes needed to release energy from glucose
Word equation for respiration
Glucose + Oxygen → Carobon dioxide + Water + Limited amounts of ATP
Symbol equation for respiration
C6H12O6 + 6O2 → 6CO2 + 6H2O
ATP
Molecule that is used to transfer the energy released in respiration in manageable quantities to the cellular processes that need it
ATP Cycle
Glucose + Oxygen → energy charges ADP into ATP molecules → manageable quantities to cellular processes
Experiments for respiration
- Exploding custard powder
- Limewater breathing tubes
Anaerobic Respiration
Temporary emergency form of respiration that doesn’t require oxygen
Why might anaerobic respiration occur?
Intense exercise that uses up oxygen faster than it is being supplied to respiring cells
Anaerobic respiration in animals
Glucose → Energy + Lactic Acid
Anaerobic respiration in plants and fungi
Glucose → Energy + CO2 + Ethanol
Why is anaerobic respiration useful if it produces a toxic waste product
It produces bonus ATP at the cost of lactic acid + oxygen debt
Oxygen Debt
Extra oxygen needed to break down lactic acid as well as oxygen for aerobic respiration
