Chapter_6_Learning_Objectives (2)

Chapter_6_Learning_Objectives (2) - Chapter Learning...

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Chapter Learning Objectives Chapter 6: Energy Flow in the Life of a Cell 6.1 What is energy? Distinguish between kinetic and potential energy o Kinetic energy is the energy being moved or used. Potential energy is the stored energy. Explain the first and second laws of thermodynamics in your own words o First law of thermodynamics is when no energy is created or destroyed. The second law of thermodynamics is when energy is converted that the amount of useful energy decreases. Explain why highly ordered living organisms do not violate the second law of thermodynamics o Unless energy is added to the system, processes that proceed spontaneously result in an increase in randomness and disorder. This leads to entropy. 6.2 How does energy flow in chemical reactions? Distinguish between exergonic and endergonic reactions in terms of free energy change o Exergonic reactions release energy from reactants yield to products and released energy. Endergonic reactions require an input of energy to form products. Explain why an investment of activation energy is necessary to initiate a spontaneous reaction o Activation energy is needed because a shell of negatively charged
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Chapter_6_Learning_Objectives (2) - Chapter Learning...

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