Which of the following is a statement of the first law of th
     Which of the following is a statement of the first law of thermodynamics?  Energy cannot be created or destroyed  The entropy of the universe is decreasing.  The entropy of the universe is constant.  Energy cannot be transferred or transformed  Which of the following statements is not true of an endergonic reaction?  delta G is a positive value.  Reactants have less free energy than the products  Free energy is absorbed  Products have less free energy than the reactants  Which of the following statements about the ATP cycle is true?  ATP synthesis requires energy  ATP hydrolysis yields energy  Energy is derived from catabolic reactions  All of the above  Which of the following describes a substance that mimes the substrate and competes I an enzyme?  Coenzyme  Competitive inhibitor  Cofactor  Oxaloacetate  If an enzyme is added to a solution where its substrate and product are in equilibrium.  Additional product will be formed  Additional substrate will be formed  The reaction will change from endergonic to exergonic  The free energy of the system will change  Nothing, the reaction will stay at equilibrium  When a molecule of NAD\' (nicotinamide adenine dinucleotide) gains a hydrogen at molecule becomes  dehydrogenated.  oxidized.  reduced.  redoxed.  hydrolyzed  Glycolysis of one glucose molecule produces a net yield of which of the following?  2 NADH, 2 ATP and 1 pyruvate  3 NADH, 1ATP and 1 pyruvate  2 NADH, 2 ATP and 2 pyruvate  3 NADH, 2 ATP and 2 pyruvate 
  
  Solution
1)A)Energy cannot be created or destroyed as the first law of thermodynamics says energy can transform from one form to another form.It can neither be created nor be destroyed.This is the reason the option A) is correct as it satisfies the statement here.
2)D)products have less free energy than reactants because reactants have less free energy than products.
3)D)All of the above as all statements are true

