Respiration Flashcards
glucose + oxygen → _________+________
carbon dioxide
water
what does lactic acid build up cause?
muscle fatigue and pain
what is oxygen debt?
the amount of extra oxygen required after exercise to fully oxidise lactic acid into carbon dioxide+water
what happens to your breathing during exercise?
the rate and depth increases
why do people eat a lot of carbohydrates before doing strenuous exercise?
to stock up on glycogen (polysacchloride) which is a polymer of glucose. it is a very efficient energy source.
why is glycogen an efficient energy source?
glycogen is very branched, meaning enzymes can release the glucose more quickly.
where is glycogen held
primarily in the liver and is a very large molecule and thus needs to be broken down to reach the muscles
what is metabolism?
it is the total of all the chemical reactions that happen inside cells and the body
what are catabolic reactions?
reactions the hydrolyse larger molecules
proteins→amino acids
what are anabolic reactions?
reactions that build larger molecules
amino acids → proteins
what is aerobic respiration?
breaking down glucose using oxygen to release energy for the cells
what is anaerobic respiration?
breaking down glucose without oxygen to release energy for the cells
what is the purpose of respiration?
it is the release of energy to allow all process to happen
where is lactic acid transported to before being oxidised and what it is oxidised into?
it is transported to the liver before being fully oxidised into CO2+H2O
what do the muscles do during exercise that requires more energy?
they contract
