Explain in about one line why it is critical for animals to have branched glycogen rather than unbranched glycogen.

Describe the four types of reactions needed for fatty acid synthesis pathway that adds acetyl (C2) groups to a growing hydrocarbon chain. Include the names of the enzymes that catalyze each reaction.

After a meal that contains carbohydrates, blood glucose levels usually rise gradually as carbohydrates are digested and the resulting monosaccharides are absorbed into the bloodstream. Suppose you run a test on a human with no lactase production. You would provide a dose (e.g., 25 grams) of lactose and measure changes in blood glucose levels over the next three hours. Predict how blood glucose levels would change from fasting to three hours. Justify your response using the results from the above simulation.

All of the following compounds have sufficiently high group transfer potentials to lead to the production of ATP except: 1,3-bisphosphoglycerate. acetyl-CoA. O phosphocreatine. glucose-6-phosphate. phosphoenolpyruvate.