ATP Flashcards
describe the structure of ATP
ribose bound to a molecule of adenine and 3 phosphate groups
describe how ATP is broken down
ATP (+water)= ADP+phosphate group
-hydrolysis requires a molecule of water which is catalysed by ATP hydrolase
what ways is ATP used in cells
-inorganic phosphate released can be used to phosphorylate other compounds making them more reactive
-coupled to energy requiring reactions within cells
describe how ATP is resynthesised in cells
condensation reaction between ADP+Pi - ATP(+water) removes a molecule of water. This is catalysed by ATP synthase during respiration and photosynthesis
suggest how the properties of ATP make it a suitable immediate source of energy for cells
-releases energy is small amounts so little energy is lost as heat
-single reaction is hydrolysed to release energy
what processes is ATP used in
-movement
-metabolic processes
-active transport
-secretion
-activation of molecules