ATP cycle and phosphorylation

What is phosphorylation?

The addition of a phosphate group to a molecule

What happens when a phosphate group is added to ADP?

ATP is formed

What is required to convert ADP into ATP?

Energy and a phosphate group

What is the equation for ATP formation?

ADP + P + Energy → ATP + H₂O

What happens when ATP loses a phosphate group?

ADP is formed and energy is released

What is the equation for ATP breakdown?

ATP + H₂O → ADP + P + Energy

What is ATP hydrolysis?

The breakdown of ATP using water to release energy

Why is ATP continuously broken down in cells?

To release energy for cellular processes

Why must ATP be continuously regenerated?

Because cells constantly use ATP to release energy

What is the ATP cycle?

The continuous conversion of ATP to ADP and back to ATP

Give two advantages of ATP as an energy source

It is a high energy molecule and easily releases energy

Where does the energy for ATP formation come from during respiration?

The breakdown of food molecules