A rabbit fleeing a coyote and a duck\'s extended flight during migration both in

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 High [ATP] inhibits Acetyl-CoA inhibits High [ADP pyruvate kinase. pyruvate kinase. stimulates Low [O2] inhibits the citric acid cycle PFK-1 activity.

Explanation / Answer

Muscular activity and energy requirements of muscle

Matching the actions of metabolic regulators with the type of muscular activity

Short term, intense muscular activity

high [ATP] inhibits pyruvate kinase

High [ADP] stimulates PFK-1 activity

Long-term continuous muscular activity

High [ADP] stimulates PFK-1 activity

Low [O2] inhibits citric acid cycle

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---