The net ATP-yield in eukaryotes from glycolysis, TCA cycle, and electron transport and oxidative phosphorylation can be readily calculated. Before the general acceptance of the chemiosmotic hypothesis for oxidative phosphorylation, this calculation was based on phosphate/oxygen ratio (P/O ratio). Most experiments yielded P/O (ATP to ½ O2) ratio of more than two when NADH was the electron donor, and more [...]
The following points highlight the ten factors affecting the the rate of aerobic respiration. The factors are: (1) Protoplasmic Conditions (2) Temperature (3) Supply of Oxidisable Food (4) Oxygen Concentration of the Atmosphere (5) Carbon Dioxide Concentration of the Atmosphere (6) Supply of Water (7) Light (8) Inorganic Salts (9) Injury and the Effects of Mechanical Stimulation and (10) Effect [...]
In this article, we will discuss about the Krebs cycle in aerobic respiration. Pyruvic acid is therefore the pivot. When aerobic respiration occurs, pyruvic acid is converted to another organic acid which in turn is changed to a third one, etc. Although these organic acids are of widespread occurrence in plant tissues, it is only relatively recently that we have [...]