This podcast covers the metabolic changes in various organs and key organ uses of the available nutrients in the bloodstream.

With the exception of ketone bodies, the brain is entirely dependent on glucose as an energy source under most circumstances. Glucose is oxidized all the way to CO2 by the brain, producing up to 38 ATPs. This catabolism is dependent on oxygen, which is used to convert the energy in NADH and FADH2 to ATP through the Electron Transport Chain and Oxidative Phosphorylation.

This podcast covers the digestion of the major dietary fat, triacylglycerol, including digestion uptake into intestinal mucosa, delivery through the bloodstream, uptake and storage of fatty acids from chylomicrons in the bloodstream.

This podcast describes the transport of ammonia produced in peripheral tissues by incorporating it into glutamine through glutamine synthase. Glutamine is transported in the bloodstream to either the liver or kidney for further metabolism.

This podcast provides an overview of metabolic changes associated with fasting, including key metabolic changes in the liver and adipose tissue. The liver will increase its output of glucose and ketone bodies, while adipose tissue will provide fatty acids to the bloodstream for other peripheral tissues to use during fasting.

This podcast summarizes the key biochemical components of metabolism, including: 1. definition; 2. cellular location; 3. the major catabolic pathways; 4. the 3 stages of catabolism; 5. the 12 major metabolic uses of glucose, fatty acids and amino acids; 6. the energy output of catabolism of glucose, fatty acids, and ketone bodies.

This podcast covers 5 distinct enzyme regulatory mechanisms and their effects on enzyme structure and activity.

This podcast covers the function and the location of the urea cycle, including some key features and the sequence of the enzymes as well as their location.

This podcast covers the role of transaminases the initial step in the degradation of amino acids. This includes the role of glutamate dehydrogenase in producing ammonia. The ammonia and aspartate produced are then able to enter the urea cycle in the liver.

This podcast covers the role of adipocytes in energy storage and their role in initiating lypolysis of stored triacylglycerols to provide various tissues with fatty acids as a energy source. The role of fatty acid Beta-oxidation in providing energy from both dietary or stored triacylglycerols is also covered.