Topic 9 - Aerobic and Anaerobic Respiration Flashcards
What is respiration?
The release of energy from food, it is an oxidation reaction.
What is the word equation for aerobic respiration?
Glucose + Oxygen —> Carbon Dioxide + Water.
What is the symbol equation for aerobic respiration?
C6H12O6 + 6O2 —> 6CO2 + 6H2O
What type of reaction is respiration?
Exothermic, as there is more bond energy stored in the reactants than the products.
What is energy from respiration used for?
Protein synthesis, active transport, creating antibodies, cell division, hormone creation, muscle contraction and enzyme production.
What compound is taken from muscle and burned for anaerobic respiration?
Glycogen.
What is the purpose of anaerobic respiration?
To release an extra amount of energy when the heart and lungs are working at their maximum, this is a survival mechanism.
Why isn’t anaerobic respiration able to be carried out for long periods of time?
A chemical called lactic acid is produced, which is toxic, during anaerobic respiration which needs to be broken down, requiring oxygen.
What is the symbol equation for anaerobic respiration?
C6H12O6 —> C3H6O3 + energy.
How do we dispose of lactic acid after anaerobic respiration?
Lactic acid is transferred to the liver where lactic acid is oxidised into water and carbon dioxide, sent to the lungs. Lungs gasp for air after exercising as they need to repay the oxygen debt after exercise.
What is the word equation for anaerobic respiration in muscles?
Glucose –> Ethanol + Carbon Dioxide + Energy.
What is the word equation for anaerobic respiration in yeast cells?
Glucose –> Ethanol + Carbon Dioxide + Energy.
What is the symbol equation for anaerobic respiration in yeast?
C6H12O6 –> 2C2H5OH + 2CO2
What commercial uses of anaerobic respiration are there?
To produce alcoholic drinks.
What happens after exercise requiring anerobic respiration?
Breathing and heart rate stay high for longer, since there is an oxygen debt in the body.
