ATP Flashcards

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1
Q

describe the structure of ATP

A

ribose bound to a molecule of adenine and 3 phosphate groups

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2
Q

describe how ATP is broken down

A

ATP (+water)= ADP+phosphate group
-hydrolysis requires a molecule of water which is catalysed by ATP hydrolase

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3
Q

what ways is ATP used in cells

A

-inorganic phosphate released can be used to phosphorylate other compounds making them more reactive
-coupled to energy requiring reactions within cells

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4
Q

describe how ATP is resynthesised in cells

A

condensation reaction between ADP+Pi - ATP(+water) removes a molecule of water. This is catalysed by ATP synthase during respiration and photosynthesis

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5
Q

suggest how the properties of ATP make it a suitable immediate source of energy for cells

A

-releases energy is small amounts so little energy is lost as heat
-single reaction is hydrolysed to release energy

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6
Q

what processes is ATP used in

A

-movement
-metabolic processes
-active transport
-secretion
-activation of molecules

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