Biology Chapter 8 Objectives

Biology Chapter 8 Objectives - Chapter 8 An Introduction to...

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Chapter 8 An Introduction to Metabolism Metabolism, Energy, and Life 1. The role of catabolic and anabolic pathways in cellular metabolism is to release and consume energy, and as a resulting, breaking down larger, and building large complex molecules from smaller ones. 2. Kinetic energy is the relative motion of objects. Potential energy is energy that matter possesses because of its location or structure. 3. An organism is considered an open system because it absorbs energy and releases heat and metabolic waste products. 4. The first law of thermodynamics states that energy can be altered, and passed along, but never created or destroyed. The second law of thermodynamics states that entropy, the measure of disorder or randomness increases during the transfer and transformation of energy. 5. Highly ordered living organisms do not violate the second law of thermodynamics because although the entropy of a particular system can decrease, the total entropy of the universe, the system plus its surroundings, increases. 6. Free-Energy Change Equation: ΔG = ΔH – TΔS ΔG is the change in free energy, a measure of the portion of a system’s energy that can perform work when temperature and pressure are uniform throughout the system. ΔH
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Biology Chapter 8 Objectives - Chapter 8 An Introduction to...

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