ATP

• ATP only releases a small manageable amount of energy at a time;

  It is small and soluble so can be easily transported around the cell;

  It's easily broken down so energy can be released quickly;

  It can be quickly re-made;

  ATP can't pass out of the cell so the cell always has an immediate source of energy.
• ATP can make other molecules more reactive by transferring one of its phosphate groups to them - this process is called phosphorylation.
• Label this ATP molecule:

  A) Phosphates

  B) Ribose sugar

  C) Adenine

  
• What is the equation for the release of energy by ATP?

  ATP + H2O --> ADP + Pi + Energy