Council Rock School District



Name _______________________________________Chapter 6: Introduction to MetabolismSection 6.1Define MetabolismWhat is a metabolic pathway?Contrast the catabolic and anabolic pathways & then give an example of each.Define the following forms of energy EnergyKinetic energyHeat/thermal energyPotential energyChemical energyLabel the diagram below in terms of the type of energy being illustratedDefine the following terms related to Thermodynamics & give an example of each.ThermodynamicsFirst Law of ThermodynamicsEntropySecond Law of ThermodynamicsExplain the difference between a spontaneous and nonspontaneous process and how these terms relate to entropyEnergy flows into most ecosystems as __________________ & exits as __________________Section 6.2What is free energy and the symbol Gibbs assigned to it?State Gibbs Free Energy equation and what each symbol means?G?H?STWhat is the importance of ?G?Respiration breaks glucose down into 6CO2, 6H2O and 36-38 ATP molecules. It has a ?G of -686kcal. What does that mean?What is chemical equilibrium?Label the diagram below showing the relationship of free energy to stability, work capacity & spontaneous change Contrast exergonic and endergonic reactions in terms of: free energy, stability, capacity to do work.16.Identify each of the following as either an exergonic or an endergonic reaction and explain your logic:a.Respirationb.Photosynthesisc. Dehydration synthesisd.Hydrolysise.Protein SynthesisCan a closed system at equilibrium do work? Why or why not?Section 6.3List and give an example of the three main kinds of cellular work (done by ATP).What is energy coupling?Label the diagram below and indicate how cellular work is done by ATP.Why is do the bonds between the 3 phosphate groups carry so much energy in them?Define phosphorylation in terms of ATP & then label the diagram below of the ATP cycleIn your own works, explained the concept of coupled reactions and ATP doing work.What is the relationship between exergonic reactions, endergonic reactions and the use and regeneration of ATP? Section 6.4What is activation energy? Label the diagrams below including the change in free energy (?G)Discuss what enzymes do to the activation energy (EA) needed for a reaction to occur.Label the diagram below showing the effects of an enzyme on EA Define the following new terms which relate to enzymes:CofactorsCoenzymes Compare and contrast competitive and noncompetitive inhibitors.30.Label the diagram below of enzyme activity inhibitionSection 6.5What is allosteric regulation and how does assist in the regulation of metabolism? What is cooperativity?Label the diagram below illustrating allosteric regulation of enzyme activityHow does feedback inhibition work?Label the diagram below illustrating the feedback mechanism involved in isoleucine synthesis ................
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