What is the net chemical equation of:
Reaction 1: 3.3 kcal/mol+glucose+Pi --> glucose-6-phosphate+H2O
Reaction 2: ATP+H2O --> ADP+Pi+7.3 kcal/mol
AND
Calculate the amount of energy released in the coupled reaction.
energy released: ____kcal/mol
To find the net chemical equation, you need to add Reaction 1 and Reaction 2 together. Note that you need to balance the equations to ensure that the number of atoms on both sides is equal.
Reaction 1: 3.3 kcal/mol + glucose + Pi → glucose-6-phosphate + H2O
Reaction 2: ATP + H2O → ADP + Pi + 7.3 kcal/mol
When combining the two reactions, you add the reactants from both reactions on the left side and the products on the right side:
3.3 kcal/mol + glucose + Pi + ATP + H2O → glucose-6-phosphate + H2O + ADP + Pi + 7.3 kcal/mol
Since water (H2O) appears on both sides of the equation, you can cancel it out:
3.3 kcal/mol + glucose + Pi + ATP → glucose-6-phosphate + ADP + Pi + 7.3 kcal/mol
Now, simplify the equation by canceling out Pi (phosphate):
3.3 kcal/mol + glucose + ATP → glucose-6-phosphate + ADP + 7.3 kcal/mol
This is the net chemical equation.
To calculate the amount of energy released in the coupled reaction, you need to subtract the energy required (endothermic) from the energy released (exothermic). In this case, Reaction 1 releases 3.3 kcal/mol, and Reaction 2 releases 7.3 kcal/mol. Therefore, to get the net energy released, subtract the energy required (3.3 kcal/mol) from the energy released (7.3 kcal/mol):
7.3 kcal/mol - 3.3 kcal/mol = 4 kcal/mol
The amount of energy released in the coupled reaction is 4 kcal/mol.
To obtain the net chemical equation of the coupled reactions, we need to first balance the equations.
Reaction 1: 3.3 kcal/mol + glucose + Pi → glucose-6-phosphate + H2O
Reaction 2: ATP + H2O → ADP + Pi + 7.3 kcal/mol
Since Reaction 1 has a net gain of 3.3 kcal/mol, we multiply Reaction 2 by 3.3 kcal/mol to balance the energy:
3.3 ATP + 3.3 H2O → 3.3 ADP + 3.3 Pi + 24.09 kcal/mol
Now we can combine the balanced reactions to obtain the net chemical equation:
3.3 ATP + 3.3 glucose + 3.3 Pi + 3.3 H2O → 3.3 ADP + 3.3 Pi + 24.09 kcal/mol + glucose-6-phosphate + 3.3 H2O
Simplifying the equation:
3.3 ATP + 3.3 glucose + 6.6 Pi + 6.6 H2O → 3.3 ADP + glucose-6-phosphate + 24.09 kcal/mol
So, the net chemical equation for the coupled reactions is:
3.3 ATP + 3.3 glucose + 6.6 Pi + 6.6 H2O → 3.3 ADP + glucose-6-phosphate + 24.09 kcal/mol
To calculate the amount of energy released in the coupled reaction, we take the energy gained from Reaction 1 (3.3 kcal/mol) and the energy gained from Reaction 2 (7.3 kcal/mol), and add them together:
Energy released = 3.3 kcal/mol + 7.3 kcal/mol = 10.6 kcal/mol
Therefore, the amount of energy released in the coupled reaction is 10.6 kcal/mol.