Photosynthesis:

Manufacturing ATP

Manufacturing NADPH₂

Cyclic Phosphorylation

Non Cyclic Phosphorylation

Calvin Cycle

Photosynthesis Worksheet

Photosynthesis Experiments

Respiration:

Manufacturing NADH₂

Glycolysis

Krebs Cycle

Electron Transport system

Respiration Worksheet

Respiration Experiment

Manufacturing ATP

ATP is the name given to an energy transporting chemical Adenosine triphosphate. This molecule contains three Phosphate groups attached to an Adenosine molecule.

If the third phosphate group is removed from ATP then you are left with Adenosine diphosphate ADP and a phosphate group .

This process releases about 30kJ of energy. Any chemical reaction in the cell that requires energy can use this fact to get the necessary energy to proceed (if more than 30kJ of energy is required then two or more ATP molecules can be used).

If a reaction requires energy then ATP is broken down to ADP and releasing the necessary energy

If a reaction is releasing energy then the energy is used to make ATP from ADP and . This stores the energy is a more manageable form which can then be used as required.

If you think of a glucose molecule as a form of money then it is a 50 Euro note. This is not a very convenient way to hold your money if you want to spend it a little at a time. If you convert it into 50 x 1 Euro coins these are more usefu