HMX Biochemistry Exam Questions With Verified Solutions

HMX Biochemistry Exam Questions With Verified Solutions Synthesis - answerATP synthase couple the exergonic movement of H+ ions down a concentration gradient to the endergonic _______ of ATP from ADP and Pi outer and inner - answerMitochondria has 2 membranes: ________ unfavorable - answerReaction with a positive change in free energy are thermodynamically favorable - answerreaction with a negative free energy(G) are thermodynamically Energy - answerability to do work coordinate diagram - answerChange in the free energy of molecules in chemical reaction can be represented ina reaction to high activation energy - answerEven thermodynamically favorable reaction may not occur at an appreciable rate if the reaction has a enzymes - answerLiving organism have evolved biological catalyst that lower the activation energy of a chemical reaction Favorable - answerGibbs free energy 0 Unfavorable - answerGibbs free energy0 Carbon dioxide + Water - answerGlucose + Oxygen = Le Chatelier's Principle - answerStates that if a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress. high - answerHigh concentration, _____ △G products and reactants - answerGibb's free energy of a chemical reaction is determined in part by the concentration of _______ Concentration - answerof a molecule can alter its free energy equilibrium - answerSystems like to stay at equilibrium, if alter, would try to reach back to a ________ appreciably - answerConcentrations of products and reactants do not change _____ over time and reaction haven't stopped too - answerFluctuation happen, but are ____ small to measure Thermodynamic - answeris the principle of the direction of equilibrium in a system free energy - answerenergy that is available to do work unfavorable - answerG0 G0 - answerfavorable favorable - answerReverse △G0 unfavorable - answerForward △G0 Extremely favorable - answerForward △G0 Extremely unfavorable, little to no reaction - answerReverse △G0 Irreversible - answerHave a large negative Gibbs free energy under cellular conditions activation energy - answerEnergy needed to get a reaction started zero - answerThough reaction with positive Gibbs free energy is thermodynamically unfavorable, if one of the reaction is close to ____, a reaction may occur at some rate Glycolysis - answerseries of 10 reactions, each catalyzed by a different enzyme, that splits molecule of glucose into two molecules of pyruvate Glucose 6-phosphate - answerGlucose - __________------Pyruvate favorable - answerGlucose is an extremely ________ reaction NAD+ - answerGlucose, 2 ______ goes in, 2 NADH goes out regulated - answerEnzymes that catalyze reversible reactions are not as frequently thermodynamic - answerEnzymes that catalyze reversible reactions are not as frequently regulated. This means that the net direction of these reversible reaction depends on the on ____________ the reactions, which can be influenced by other reaction that affect the concentration of products and reactants Kinases - answerenzymes that catalyzed reactions in which a molecule is phosphorylated Phosphatases - answerenzymes that removes phosphates from molecules ATP, out - answerGlucose to GGP