PHOSPHAGEN
Other word for Phosphagen System
ATP-PCr system
This energy system uses carbohydrates as its primary fuel source
glycolytic system
The word “aerobic” means this is required for this energy system to produce energy.
oxygen
Identify the Energy System
Clue: A tennis player explodes forward for a 3-second sprint to reach a drop shot. Which energy system is primarily dominant?
phosphagen
The two main energy sources used by this system are ATP and this high-energy compound
phosphocreatine (PCr)
The main fuel molecule broken down during glycolysis is this simple sugar.
glucose
The aerobic system primarily takes place in these organelles of the cell.
mitochondria
Identify the Energy System
Clue: A marathon runner maintains a steady pace for several hours. Which energy system predominates?
aerobic
How long is the phosphagen energy system primarily used during maximal, high-intensity activity?
0-10 seconds
When oxygen availability is limited, glycolysis produces this substance from pyruvate.
lactate
How long is the aerobic energy system primarily used during continuous activity?
More than 2 minutes
Identify the Energy System
Clue: An athlete performs a 30-second all-out cycling sprint. Which energy system becomes increasingly important?
glycolytic
The enzyme responsible for breaking down phosphocreatine to help regenerate ATP is called this.
creatine kinase
Glycolysis occurs in this part of the cell.
cytoplasm/cytosol
The aerobic system can use carbohydrates and this macronutrient as major fuels during exercise.
fat
True or False
The three energy systems work independently, with only one system functioning at a time.
false
What enzyme catalyzes the transfer of a phosphate from phosphocreatine to ADP?
Creatine kinase
Net glycolysis produces this many ATP molecules from one molecule of glucose.
2 ATP
What molecule serves as the final electron acceptor in the electron transport chain?
oxygen
Which energy system has the highest rate of ATP production but the lowest capacity?
phosphagen