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Questions and Answers
What is the by-product of the breakdown of glucose without oxygen in the lactic acid system?
How long does it take to fully restore ATP/PC supplies during recovery?
In the aerobic system, what is the fuel source after carbohydrates are depleted?
Which system is able to sustain long-duration activities without large amounts of glycogen needed in one go?
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What is the primary fuel source in the lactic acid system?
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Which compound is responsible for storing and transferring energy to body cells?
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What happens when the last phosphate of the ATP compound detaches?
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Which system is a rapid energy pathway used during high-intensity activities without producing lactic acid?
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What component facilitates the transfer of a phosphate group from creatine phosphate (CP) back to ADP?
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What molecule is held together by energy bonds in ATP, providing storage for movement energy?
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Study Notes
Lactic Acid System
- By-product of glucose breakdown without oxygen is lactic acid.
- Primary fuel source in the lactic acid system is glucose.
- The system is utilized during high-intensity activities, but notably produces lactic acid.
ATP/PC Supplies
- Full restoration of ATP/PC supplies during recovery takes several minutes, specifically around 3-5 minutes for optimal replenishment.
Aerobic System
- After carbohydrates are depleted in the aerobic system, fats become the main fuel source, allowing continued energy production.
Sustained Energy Activities
- The aerobic system is capable of sustaining long-duration activities without requiring large amounts of glycogen at once, providing endurance.
Energy Storage and Transfer
- ATP (adenosine triphosphate) is the compound responsible for storing and transferring energy to body cells.
- When the last phosphate group detaches from ATP, it converts into ADP (adenosine diphosphate), releasing energy for cellular work.
Rapid Energy Pathway
- The phosphagen system is a rapid energy pathway used during high-intensity activities, which operates without producing lactic acid.
Phosphate Group Transfer
- The transfer of a phosphate group from creatine phosphate (CP) to ADP is facilitated by the enzyme creatine kinase.
Energy Bonds in ATP
- In ATP, energy is held in high-energy bonds, providing an essential storage mechanism for energy required for muscle contraction and movement.
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Description
Test your knowledge on energy systems and the role of ATP in converting food to usable energy for muscles. Learn about the structure and function of ATP, a high-energy compound essential for transferring energy to body cells.
