Question

Please help answer ALL the following questions in the attachment. Please answer only if you’re certain. Thank you so much for your help.

1 Find the mismatched pai a) Entropy (AS-measurement of disorder in a thermodynamic system b) AG<0-Energetically favorable (spontaneous) reaction c) First Law of Thermodynamics-Energy in a system is not created nor destroyed, only transformed d) Second Law of Thermodynamics-The entropy of a perfect crystal at 0 K is exactly equal to zero. e) Standard free energy (G-The useful energy in a system 2. Which of the folowing reactions is unfavorable? a) NaCl dissolving in water (AG0) b) Formation of peptide bonds during protein synthesis (AG values vary from 10 to 20 kJmol) c) Hydrolysis of ATP to ADP+ (AG-30.5 kJ/mol) d) Oxidation of a 16-carbon (C1e) fatty acid releases enough energy to synthesize 130 ATPs e Oxidation of one molecule of glucose (Cs) yields 38 ATPs in eukaryotic cells in metabolic reactions the equilibrium constant (K) is modified by enzymes. a) True a) False Which of the following is incorrect regarding Gibbs free energy? a) 3. 4. AG=AG. + RT In (kJimo) for the reaction Y → X: Risthe gas constant and T is temperature in K b) AG -142 log K, where K- d) AG AG at pH 7 e) None of the above Enzymes are true catalysts because a) they decrease the energy of activation required for the reactions they participate in. b) they are required in small amounts. c) they are not consumed in the reaction d) they increase reaction rates without altering the chemical equilibrium between reactants and products e) All of the above 5. 6. If proteins A and B have complementary surfaces, they may interact to form the dimeric complex AB. Which of the following is the correct way to calculate the equilibrium constant, K, for the association between A and B7 d) e) Which of the following axioms regarding enzymes is not correct? a) Not all proteins are enzymes, but all enzymes are proteins. b)Not all proteins are enzymes and not all enzymes are proteins. c) Not all enzymes are proteins; some enzymes depend on RNA for their catalytic activity. d) Can you repeat the question? What are the limitations of protein enzymes? a) They b)They are limited to a pH range c) They may have specific requirements (coenzymes or cofactors) d) All of the above e) None of the above Both b) and c) are correct Neither a), b) nor c) are correct 7. 8. are active within a certain range of temperature.

Answer 1

Answer 1(c) It is third law of thermodynamics which states that entropy of perfect crystal is zero when temperature of crystal is equal to zero kelvin. Second law of thermodynamics state that total entropy of an isolated system can never decrease over time.

Answer 3-false because equilibrium constant of a reaction can only be changed by change in temperature. Other factors causes shift in equilibrium position.

Answer 5- All the options are correct. Enzymes are those substance that increases rate of reaction by reducing activation energy. Enzymes are not consumed during chemical reaction.

Answer 6(b) This equation follows law of mass action. According to this law chemical reaction is directly proportional to ratio of product to reactant rise to their power of coefficient.

Answer 7(a) Not all enzymes are protein because some depend on RNA for catalysis but most of the enzymes are proteinaceous in nature.

Answer 8(c) Enzymes work in particular range of temperatures and ph because its confirmation gets altered at high and low parameters i.e gets denatured.