ATP: What is ATP?Molecular Level: ATP is composed of 1 adenosine molecule (adenine + ribose) and 3 molecules of phosphate attached through high energy bonds.
When energy is required, a phosphate group is cleaved off releasing free energy.
ATP → ADP + P + ENERGY
As a person goes about the daily schedules, the body is in constant high demand of ATP.
How does this body keep up with these demands?
There are two methods the body uses to make new ATP, Anaerobic (without oxygen) and Aerobic (with oxygen).
The system that is chosen for ATP production depends on the duration of the activity being performed.
Two Energy Systems: ATP Production
Aerobic System takes place inside Mitochondria (powerhouse).The Aerobic Process (uses O2) involves many enzymes and several complex pathways which eventually lead to the breakdown of Glucose.
This system is utilized for activities that are longer than 90 seconds in duration AKA Endurance Events.
This system utilizes available enzymes for powerful but relatively short lived,high intensity physical actions.
These two systems co-exist, interact and overlap in various combinations to provide adequate amounts of ATP for the needs of the body’s activities.
Aerobic Cellular Respiration: Brief Overview
There are a variety of ways in which the body can make energy in the form of ATP. Aerobic Cellular Respiration is one way Plants & Animals make ATP. Oxygen + Glucose → carbon dioxide + water + Energy- Aerobic Cellular Respiration is a process that involves two steps: Glycolysis = takes place in the Cytosol. Oxidative Respiration = takes place in the mitochondria.There are a variety of ways in which they can make energy in the form of ATP.