ATP Flashcards
ATP
Nucleotide derivative
Phosphorylase macromolecule
Adenine, ribose, 3 phosphates
How does ATP store energy
Phosphate group bonds have reduced AE, unstable, easily broken
Release lots of energy in hydrolysis
Catalysed by ATP hydrolase
2 phosphates
Adenosine diphosphate
1 phosphate
Adenosine monophosphate
Synthesis of ATP
Catalysed by ATP synthase Condensation Involves addition of phosphate Photophosphorylation Oxidative phosphorylation Substrate level phosphorylation
Photophosphorylation
During photosynthesis in chlorophyll containing plant cells
Oxidative phosphorylation
During resp, plant animal cells
Substrate level phosphorylation
Phosphate group transferred from reactive donor molecule to ADT in plants, animals
Roles of ATP
Immediate energy source
Not stored in large amounts
Release small amounts of energy when hydrolysed
Continuously made in mitochondria
Uses of ATP
Metabolic process, build up of macromolecules
Movement, muscle contraction
Active transport, change carrier protein shape
Secretion, lysosomes formation
Activation of molecules, Pi used to phosphorylation other compounds, make them more reactive, lower AE in enzymes reactions