HW #6 - AP Biology (Period 3) Gupta, Saurabh 10/07/2011...

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AP Biology (Period 3) Gupta, Saurabh 10/07/2011 Homework #6 (111007): Chapter 8 (due Friday 111007 ) Total points: 40 for Attempt on all questions 1 Concept Map: 10 points each Total 50 points 1. Explain the role of catabolic and anabolic pathways in cellular metabolism. Catabolic (breakdown) pathways release energy by breaking down complex molecules to simpler compounds, like cellular respiration. Anabolic (biosynthetic) pathways consume energy to build complicated molecules from simpler compounds, like the synthesis of a protein from amino acids. 2. Distinguish between kinetic and potential energy. Kinetic energy is the relative motion of objects, like heat (thermal) energy. Potential energy is energy that is not kinetic, rather it is energy that matter has because of its location or structure. An example is chemical energy. 3. Explain why an organism is considered an open system. Organisms are considered an open system because they can transfer energy between itself and its surroundings. Organisms can absorb light or chemical energy, and release heat metabolic waste products to the surroundings. 4. Explain the first and second laws of thermodynamics in your own words. The first law of thermodynamics is that energy can be transferred and transformed, but can’t be created or destroyed. The second law of thermodynamics is that every energy transfer or transformation increases the entropy, a measure of disorder or randomness. 5. Explain why highly ordered living organisms do not violate the second law of
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This note was uploaded on 11/06/2011 for the course AP BIO 101 taught by Professor Chan during the Fall '05 term at JFK.

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HW #6 - AP Biology (Period 3) Gupta, Saurabh 10/07/2011...

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