Activity week 2 with answer

Activity week 2 with answer - 4. For the reaction C D, if...

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Metabolic pathway and Free energy Worksheet 1/12/10 Below is a metabolic pathway (these arrows represent the direction of standard conditions (1M, pH 7, 25degree, and 1 atmosphere pressure) and arrow size reflect the ∆G of each step): Transition state Energy C D Distribution 1. Which of these metabolites (A,B,C, etc.) is most likely a biological fuel? A (1) A is in a highest energy state in this metabolic pathway. In the whole pathway, electron goes from A -> B -> C……-> F. For example, in glycolysis, glucose is the first molecule in the pathway, and is the biological fuel. (2) A is relatively stable with high activation energy. A B is not favorable, so energy input is needed to drive A B forward. 2. Please label ∆G A and ∆G on the diagram. 3. How can you drive A B reaction forward? (a) increase A’s concentration by adding A into the reaction (b) lower B’s concentration by removing B ( c) Add ATP to provide energy
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Unformatted text preview: 4. For the reaction C D, if the concentration of C goes up, how will the G of the reaction change? G will increase since the average energy of C will increase when its concentration goes up. 5. Which of these reactions are most likely to produce energy (ATP)? C D and E F 6. Which of these reactions is most likely to consume energy (ATP)? A B C D E F A B. The direction of reactions depends on the relative concentration of reactants and products as well as their standard G . Reactions: A B, B C, D E are not favorable. Reactions: C D and E F are favorable. C and D will be spontaneously converted to D and F. Therefore, the concentration of C and E will drop, which push B C and D E to go forward. Therefore, reaction A> B might be required more energy than other reactions to get started....
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This note was uploaded on 06/02/2010 for the course BIS 2A taught by Professor Grossberg during the Winter '08 term at UC Davis.

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Activity week 2 with answer - 4. For the reaction C D, if...

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