AG-AH-TAS [p. 2, Ch6 notes) The symbol_ in the equation equals the change in all

Question

AG-AH-TAS [p. 2, Ch6 notes) The symbol_ in the equation equals the change in all the cncrgy containcd in the chemical bonds in the molccules (cither reactants or products) of a given rcaction. Ammonia, NH3, is used in numerous industrial processes, including the production of pharmaccuticals such as sulfonamide and antimalarial drugs and vitamins such as the B vitamins. The cquilibrium cquation for the synthesis of ammonia (sometimes known as the Haber process) is: Nz (gas)3H2 (gas) NH3 (gas) 2. Typically this reaction runs at 500°C so at iooC the forward reaction would: increase decrease tel de eee 3. If the concentration of N2 gas decrcased, the rate of the forward reaction would: increase decrease 4. If the concentration of NH3 gas increased, the rate of the forward reaction would: 5. In 6. increase decrease the product of a mctabolic pathway inhibits an earlier step in the pathway is actually an example of positive feedback on an enzyme in the short term, in which the increases the affinity of active sites in other polypeptide subunits for binding the substrate 7. Write the letter represcnting the activation cncrgy of the enzyme-catalyzed reverse reaction. 8. Writc the letter in the blank that represents the E A+B , of the uncatalyzed forward reaction shown at left. 9. Write the letter representing a valuc that is not affected by the presence or absence of an enzyme. io. write the Icttcr represcnting the activation cncrgy of the enzyme-catalyzed forward reaction. d. C + D Progress of the Reacton is a specialized nucleotide whose charged groups are unstable and temporarily store G required to run endergonic cellular processes. 12. The 2nd law of thermodynamics states that- increases spontancously unless is added to the system. 13-16. If the products have less free energy than the reactants, the sign of AGisand the reaction If the products have more free energy than the reactants, the sign of AG is is said to be and the reaction is 7. Many enzymes function poorly at low pH because excess H . in solution and will not be available to hold the 3-D structure of the protein together. charged amino acids will attract the At 18-19. The energy needed to destabilize chemical bonds and start a reaction is called the active site,- between the substrate and the enzyme contributes to this destabilization. 20. A molecule that binds to the active site thereby reducing the ability of the enzyme to catalyze its principal reaction is called a

Explanation / Answer

1. Delta G represents the change in energy in chemical bonds. Delta H is enthalpy and delta S is entropy.

2. Rate of reaction is directly proportional to temperature, therefore rate of forward reaction decreases.

3. Rate of reaction is directly proportional to concentration of reactants, therefore rate of forward reaction decreases.

4. Rate of reaction is inversely proportional to concentration of products, therefore rate of forward reaction decreases.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.