chpt 12 biochem – Flashcards

The standard free energy change for the hydrolysis of ATP to ADP and inorganic phosphate (Pi) is about -30 kJ/mol but in the red blood cell the actual free energy change for this reaction is about -52 kJ/mol. This means that:

Which of the following is FALSE for catabolic pathways? They extract usable chemical energy from fuel molecules. They are oxidative. They generate ATP. They generate oxidized enzyme cofactors.

Biological oxidation-reduction reactions always involve

what is the common requirement in all anabolic pathways

T or F: The hydrolysis of phosphoanhydride bonds in ATP releases large amounts of free energy.

Which of the following terms accurately describes enzyme-catalyzed pathways that yield energy and breakdown complex molecules to simpler precursors?

T or F: A coupled reaction in which one reaction is endergonic and one is exergonic will proceed as long as the overall pathway is exergonic.

T or F: Metabolism is the overall process through which living systems acquire and use free energy to carry out various functions.

T or F: The equilibrium constant can be calculated from standard state free energy data.

Energy is generated during _____, the breakdown of larger molecules into smaller while energy is consumed during _____, the building of larger molecules from smaller ones.

When ΔG >>0:

When ΔG<<0:

The three destinations for absorbed monosaccharides