Allentown is 50 miles (80 km) north-northwest of Philadelphia, the fifth most populous city in the United States, 90 miles (140 km) east-northeast of Harrisburg, the state capital, and 90 miles (140 km) west of New York City, the nation's largest city.
Mitochondria is the organelle that uses energy from organic compounds like pyruvate to make ATP, or adenosine triphosphate.
The ATP-PC System. If you train any of your clients at high intensity you must understand how this energy system works. Here's a short(ish) explanation... As the name suggests the ATP-PC system consists of adenosine triphosphate (ATP) and phosphocreatine (PC).This energy system provides immediate energy through the breakdown of these stored high energy phosphates.If this energy system is 'fully stocked' it will provide energy for maximal intensity, short duration exercise for between10-15 seconds before it fatigues.here are only a few steps involved in the ATP-PC which is why it provides energy so quickly. S teps of the ATP-PC system: 1. Initially ATP stored in the myosin cross-bridges (microscopic contractile parts of muscle) is broken down to release energy for muscle contraction.