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What is the main goal of optimizing energy systems in physical education?
To ensure safe and improved performance in physical activities;
What are the three main food macronutrients that serve as sources of energy?
Carbohydrates, Proteins, and Fats;
What is the primary energy source among macronutrients?
Carbohydrates (as glucose);
What is the role of proteins in energy use?
They serve as building blocks and secondary energy sources;
What is the role of fats in energy production?
They are concentrated energy sources;
What supports metabolic processes aside from macronutrients?
Vitamins, minerals, and water;
What is metabolism?
A set of chemical reactions converting food into energy;
What are the two types of metabolism?
Catabolism and Anabolism;
What is catabolism?
The breakdown of complex molecules into simpler ones, releasing energy (e.g., to produce ATP);
What is anabolism?
The synthesis of complex molecules from simpler ones, using energy for growth, repair, and storage;
What is the main energy currency of the cell?
ATP (Adenosine Triphosphate);
What is the first step in the digestive process?
Mechanical and chemical breakdown in the mouth;
Where does major digestion and nutrient absorption occur?
In the small intestine;
What is the final step of digestion?
Waste elimination through the anus;
What are the three energy systems?
ATP-PC system, Glycolytic system (anaerobic), and Aerobic system;
Which energy system is dominant in a 5-second sprint?
ATP-PC system;
Which energy system is dominant in a 400m sprint?
Anaerobic Glycolysis (Lactic Acid system);
Which energy system is dominant in a 5 km fun run or marathon?
Aerobic system;
What are the key steps of the Krebs Cycle?
Conversion of Acetyl-CoA into various intermediates, producing NADH, FADH₂, ATP, and CO₂;
What is the total ATP yield from oxidative phosphorylation per glucose molecule?
34 ATP;
What does NADH and FADH₂ do in the Electron Transport Chain?
Donate electrons to produce ATP and form water;
Why is aerobic endurance important for emergency responders?
It helps sustain energy during prolonged rescue or physical tasks;
How does knowledge of energy systems help in training design?
It allows for specific programs targeting sprinters (anaerobic focus) vs long-distance runners (aerobic focus);
What does energy transformation support?
Daily activities, body temperature regulation, organ function, growth, and repair;