Muscle contraction requires a large amount of ATP, meaning that a constant source of ATP is needed. In this article we will look at the three sources of ATP which muscle fibre cells can use. Phosphocreatine ATP has to be made by adding a phosphate group (Pi) to ADP. In the ATP-phosphocreatine system, the phosphate... Continue Reading →
Anaerobic Respiration and Respiratory Quotients – Respiration Ep 4
Anaerobic respiration happens when there isn't enough oxygen present for aerobic respiration to continue. Different types of organism use different pathways. For both pathways we will learn about today, the yield of ATP is much lower than in aerobic respiration because the only ATP produced comes from glycolysis (2ATP per glucose molecule). In this article... Continue Reading →
Glycolysis and The Link Reaction – Respiration Ep 1
In this series we are going to be looking at respiration. This is the process that releases energy from glucose to produce ATP. In the first few articles we'll be focusing on aerobic respiration (which uses oxygen) and then we will cover anaerobic respiration (which doesn't use oxygen) in the last article. Please bear in... Continue Reading →


