Energy and ATP

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  • ATP
    • Structure
      • Adenine
      • Ribose
      • Phosphates
    • how ATP stores energy:
    • Synthesis of ATP
      • Conversion of ATP to ADP is a reversible reaction.
      • The reaction is catalyzed by the enzyme ATP synthase
      • Condensation reaction
      • ADP TO ATP
        • Photophosphorylation
        • Oxidative phosphorylation
        • Substrate- level phosphorylation
    • Roles of ATP
      • Metabolic process
        • Energy needed to build up macromolecules from their basci units
      • Movement
        • Provides energy for muscle contraction
        • Muscle filaments to slide past one another
      • Active transport
        • Change the shape of carrier proteins
      • Secretion
        • Needed to form Lysosomes necessary for the secretion of cell products
      • Activation of molecules
        • Phosphorylate other molecules and make them reactive
        • Lowers activation energy in enzyme-catalyzed reactions
  • The bonds between phosphates are unstable
    • Therefore have a low activation energy
    • When the bonds break they release a considerable amount of energy.
    • ATP + (H20)  ---> ADP + Pi + E


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