the ability to do work or bring about a change. energy
TRANSCRIPT
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The ability to do work or
bring about a change
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•ENERGY
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•Food is specifically called _________________ energy, because energy is stored in its bonds.
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•Chemical Energy
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Looking at the picture of Max on a slide, indicate where you would find kinetic and potential energy
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•Potential-On top of the slide•Kinetic-Once Max goes down the slide
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The boys are eating and then join a soccer game. Where would you find mechanical energy and chemical energy?
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•Chemical energy is found in our food, we break it down metabolically and convert it into mechanical energy (motion)
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What is the First Law of Thermodynamics?
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•Energy cannot be created or destroyed, but can be changed from one form to another. (Conservation of Energy)
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•The 2nd Law of Thermodynamics states that energy cannot be changed from one form to another without a loss of usable energy. •What is the “useable energy” usually released as?
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•Heat
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•The relative amount of disorganization is called:
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•Entropy
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Which room is more stable and would therefore favor the laws of entropy?
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•The messy one is more stable. The clean one requires more “work” to stay clean.
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•Explain the difference between endergonic and exergonic reactions
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•Endergonic- require an input of energy (cold pack)•Exergonic-releases energy (explosion)
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•What is the difference between anabolic and catabolic?
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•Anabolic-The building up or synthesis of molecules•Catabolic-The breaking down of molecules
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•What does ATP turn into after it has been hydrolyzed by water and has given off energy?
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•ATP is broken down by water (hydrolysis) gives off energy and heat and turns into ADP
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Describe how endergonic and exergonic reactions are “coupled” in lifting weights
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•ATP breaks down to release energy (exergonic) your muscles use that energy to contract (endergonic)
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List the 3 types of “work” that ATP can be used for
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•Chemical work, transport work and mechanical work
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Enzymes are metabolic catalysts that lower the _________________, so that the reaction can occur quicker.
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•Energy of Activation, or Ea
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•The change in energy of the products from the reactants is written as_________________________
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•DELTA G
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•An enzyme that would break down the sugar Maltose, would most likely be named:
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•Maltase
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What are the 6 factors affecting enzymatic speed?
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• Temperature• pH• Substrate concentration• Enzyme Activation• Enzyme Inhibition• Enzyme Cofactors
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When an Enzyme can no longer bind to its substrate because of exposure to high heat, we say that the enzyme has been:
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•Denatured