Energy Flashcards
What are the three main energy systems in the body?
The three main energy systems in the body are creatine phosphate, lactic, and aerobic
What is ATP?
ATP (adenosine triphosphate) is an energy-rich compound that can be identified as our main currency
What is mechanical energy?
Mechanical energy is the sum of kinetic and potential energy and can be transferred through physical actions or changes in the state of a system
What are some examples of mechanical energy?
Examples of mechanical energy include a moving car (kinetic energy), a hydrostatic turbine rotated by the flow of water, and a bullet fired from a gun
What is chemical energy?
Chemical energy is a form of potential energy that is stored in the bonds between atoms and molecules
What is electrical energy?
Electrical energy is a form of energy that results from the movement of charged particles, such as electrons
What is potential energy?
Potential energy is a form of energy that an object or system possesses due to its position or configuration
What is kinetic energy?
Kinetic energy is a form of energy that an object or system possesses due to its motion
What is the role of ATP in physical activity?
ATP provides the necessary energy for muscle contractions during physical activity
How does the body convert chemical energy into mechanical (movement) energy?
The body converts chemical energy into mechanical (movement) energy by breaking down ATP into ADP (adenosine diphosphate) and releasing the stored energy to power muscle contractions
How does training affect the body’s energy systems?
Training can improve the efficiency and capacity of the body’s energy systems, allowing for better performance during physical activity
What is the difference between anaerobic and aerobic exercise?
Anaerobic exercise is any activity that breaks down glucose for energy without using oxygen, while aerobic exercise maximally delivers oxygen to your muscles and uses oxygen to create energy for your body
What are some examples of anaerobic exercises?
Examples of anaerobic exercises include weightlifting, jumping or jumping rope, and sprinting
What are some examples of aerobic exercises?
Examples of aerobic exercises include walking, jogging, cycling, and swimming
What is the anaerobic energy system?
The anaerobic energy system is one of the body’s three primary ways of creating energy and produces significantly less ATP than its aerobic counterpart. It leads to the build-up of lactic acid and is used during exercises that require short bursts of intense energy, such as sprinting or power-lifting
What is the aerobic energy system?
The aerobic energy system is one of the body’s three primary ways of creating energy and maximally delivers oxygen to your muscles. It uses oxygen to create energy for your body and is used during exercises that are low to moderate in intensity and long in duration, such as walking or cycling
How does exercise intensity affect fuel sources used for ATP production?
Exercise intensity determines the contribution of different fuel sources used for ATP production. Both anaerobic and aerobic metabolism combine during exercise to ensure that the muscles are equipped with enough ATP to carry out the demands placed on them. As activities become more aerobic, the body can utilize fatty acids and, to a small extent, amino acids, for energy production
What is lactic acid?
Lactic acid is a byproduct of anaerobic metabolism that builds up in muscles during intense exercise. It can cause muscle fatigue and soreness
