This is a comprehensive textbook covering life functions that are ultimately interpretable in chemical terms, as chemistry is the logic of biological phenomena.
This illustration from Biology by Kenneth R. Miller and Joseph Levine describes the steps of the Krebs cycle, the critical first stage in the process of cellular respiration.
These pages show the steps of the metabolic pathway called the Tricarboxylic Acid (TCA) cycle. Otherwise known as the citric acid cycle and the Krebs cycle. Data sheets, reaction diagrams and animations are provided for each step.
Krebs cycle or the citric acid cycle or tricarboxylic acid cycle,occurs in mitochondria, is the common pathway to completely oxidize fuel molecules which mostly is acetyl CoA ,the product from the oxidative decarboxylation of pyruvate. It enters the cycle and passes ten steps of reactions that yield energy and CO2
You can browse the ten steps of reactions through three strands: fact sheet gives the name of enzyme, reaction type,mechanism and prosthetic group; reaction shows the structure of substrate and product(s) and animation presents a short movie clip showing the reaction.
