Fructose is a labeled on its anomeric carbon with 14C. This labeled fructose is added to muscle cells under anaerobic glycolytic conditions, and the secreted lactate is collected. Which carbon in the secreted lactate (shown below) contains the 14C label? H OH

How many ATP are produced from a triglyceride containing three 14 carbon fatty acids? NOTE: Assume that glycerol is converted to Glyceraldehyde-3-Phosphate (step 6 of glycolysis).

Insulin resistance, as occurs in type 2 diabetes, may lead to increased ketone production and release into blood. Describe the biochemistry that links insulin resistance and ketone production. Compare the cellular energy (e.g. ATP) required and produced when glycogen is synthesize and hydrolyzed, respectively. Compare and contrast the mechanism of fatty acid synthase with translation. When young rats are placed on a totally fat acid free diet, they grow poorly, develop a scaly dermatitis, lose hair, and soon die these symptoms that can be prevented if plant material is included in the diet. Why?

Which of the following statements are descriptions of metal ion catalysis or examples of metal ion catalysis? Choose all correct answers a Zn²+ cofactor may properly orient the substrate in the active site through ionic interactions. a covalent bond forms between enzyme and substrate lowers the energy or stabilizes the transition state or intermediate catalyst retains its original form after reaction occurs catalysts may participate in oxidation-reduction reactions by changes in the oxidation state