Question

Why is ATP not worth the same amount in different cell types (i.e. have a different ΔG) in multicellular organisms?

Electrostatic repulsion between phosphate groups within a molecule of ATP.

Different concentrations of ATP present.

Different concentrations of ADP and Pi.

Not all cells in a given organism are capable of oxidative phosphorylation.

Why is ATP not worth the same amount in different cell types (i.e. have a different ΔG) in multicellular organisms?

Electrostatic repulsion between phosphate groups within a molecule of ATP.

Different concentrations of ATP present.

Different concentrations of ADP and Pi.

Not all cells in a given organism are capable of oxidative phosphorylation.

(please provide answer with proper explanation for a thumps up)

Answer 1

Adenosine triphosphate is composed of nitrogenous base adenine and five carbon sugar ribose and three phosphate groups. ATP is hydrolysed to ADP as follows:-

ATP + H2O --- } ADP +Pi + free energy

Delta G for hydrolysis of 1 mole of ATP is -30.5 kJ/mol. This is standard delta G, in living cells ∆G is almost -57 kJ/mol. Cells couple the exergonic reaction of ATP hydrolysis with endergonic reactions of the cellular processes. Total ∆G of the cell is the sum of individual reactions. The chemical basis for the large free energy change (∆G) associated with ATP hydrolysis is due to electrostatic repulsion between phosphate groups in ATP molecule.

Ist option is the correct answer to this question