Question

A rabbit fleeing a coyote and a duck's extended flight during migration both involve muscular activity with high demands for metabolic fuel. However, the source of fuel and the pathways for ATP production differ. A rabbit's short-term need for ATP is supplied by the breakdown of stored glycogen and glycolysis under anaerobic conditions. ATP for a duck's extended flight is supplied by the breakdown of fats to acetyl-CoA, the citric acid cycle, and oxidative phosphorylation. The short-term intense run and the long-term flight require coordinated regulatory controls on the central metabolic pathways of glycolysis, citric acid cycle, and oxidative phosphorylation. Match the actions of metabolic regulators with the type of muscular activity. Short-term, intense muscular activity Long-term, continuous muscular activity low (acetyl-CoA) relieves pyruvate kinase inhibition high [AMP] stimulates PFK-1 activity citrate inhibits PFK-1 nhibits the citric acid cycle high [ATP] inhibits pyruvate kinase Answer Bank

Answer 1

SHORT TERM INTENSE MUSCULAR ACTIVITY LONG TERM CONTINUOUS MUSCULAR ACTIVITY. * high (AMP) stimulates PFK -1 activity - * high (ATP] inhibits Pyruvate kinase. * * low [02) inhibits citric acid cycle. * loc [acreyl- coat relieves Pyruvate kinase inhibition. citrate inhibits Pik-1. l6w/ Casteglt Loss reticles pyruvabe benese ishubition .