Unit%201a%20-%20Bioenergetics%20Slides

Unit%201a%20-%20Bioenergetics%20Slides - Physiology: a...

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Physiology: a branch of biological science concerned with the function (life processes) of living organisms and their component parts Human Physiology Human being is composed of cells which operate on the molecular Cells have become specialized to contribute to the homoestasis and function of the whole organism Some functions are basic to sustaining life i.e. maintaining homeostasis (breathing, temperature regulation, waste elimination, reproduction, etc.) but some are the reason for life (intelligence – creativity, emotion, personality). Text refers to these as emergent IPHY 3480
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Human Physiology 2 – IPHY3480 Energy and Cellular Metabolism IPHY 3480
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Biological Energy  Cycle
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Human locomotion and other cellular metabolic activities are energetic events. Understanding what energy is and how the body acquires, converts, stores, and utilizes it is the key to understanding the events that sustain life and how body performs in sports, recreational, and occupational activities IPHY 3480
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Thermodynamics/Energetics Science that studies the principles limiting energetic events Bioenergetics - science that studies energetic events in the biological world IPHY 3480
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Energy Definition: capacity to do work (mechanical and /or biological) Six primary forms: thermal (heat), chemical, mechanical, electrical, radiant (light), and atomic Energy cannot be created or destroyed (1st law of thermodynamics)-transformed from one form to another Processes always go in the direction of randomness or disorder thus increasing the entropy in the universe (2nd law of thermodynamics) IPHY 3480
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Unit%201a%20-%20Bioenergetics%20Slides - Physiology: a...

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