Liver
In humans, under ANAEROBIC conditions (no O2), pyruvate is 'converted' to lactate, though I wouldn't say it is "broken down".In humans, under AEROBIC conditions (O2 present), pyruvate is converted to Acetyl-CoA, via the pyruvate dehydrogenase reaction.In yeast, pyruvate is converted into ethanol (Party Fluid) via pyruvate decarboxylase and then alcohol dehydrogenase.
fermentation
It is converted to acetaldehyde and then further broken down in the liver.
Lactic acid is broken down into lactate by the enzyme lactate dehydrogenase in a process called lactic acid fermentation. This conversion helps to regenerate NAD+ so that glycolysis can continue in the absence of oxygen.
carbohydrates
oxygen
Heme is broken down into biliverdin, which is then converted into bilirubin by enzymes. Bilirubin is then excreted from the body through bile production and elimination in the feces.
Yes, lactate can be synthesized from all three energy-yielding nutrients: carbohydrates, fats, and proteins. During intense exercise or low oxygen conditions, these nutrients can be broken down to produce lactate as a byproduct, which can then be used for energy by the body.
It can be converted to water and carbon dioxide by setting it on fire. Ethanol can be broken down in the body by an enzyme called alcohol dehydrogenase.
Whey protein is broken down into amino acids in the body, which are then converted into glucose through a process called gluconeogenesis.
The key differences in the metabolic pathways of glucose and pyruvate are that glucose is broken down through glycolysis to produce pyruvate, which can then enter the citric acid cycle to produce energy in the form of ATP. Pyruvate, on the other hand, can be converted into acetyl-CoA before entering the citric acid cycle. Additionally, pyruvate can also be converted into lactate or ethanol through fermentation pathways.
The chemical broken down by respiration is glucose. During the process of respiration, glucose is converted into carbon dioxide, water, and energy in the form of ATP (adenosine triphosphate) through a series of biochemical reactions.