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Biology assessment 2 > ATP > Flashcards

ATP Flashcards

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1
Q

What’re the components of ATP

A
  • Adenine
  • Ribose
  • 3 phosphate groups
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2
Q

What is adenine in ATP

A

nitrogenous base

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3
Q

What is ribose in ATP

A

5 carbon sugar

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4
Q

Is ATP small or large

A

Small molecule

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5
Q

What does ATP do

A

primary energy source of cells

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6
Q

What is ATP used for

A

power most energy-requiring cellular reactions

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7
Q

What is ATP called and why

A

nucleotide derivative as it’s a modified form of a nucleotide

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8
Q

What’s the equation for the hydrolysis of ATP

A

ATP + H2O —> ADP + Pi (+energy)

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9
Q

What does the enzyme ATP hydrolase catalyse

A

Hydrolysis of ATP to adenosine diphosphate and an inorganic phosphate group

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10
Q

What does the enzyme ATP hydrolase use when reacting

A

Water molecule making it a hydrolysis reaction

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11
Q

When is energy released in ATP

A

During the hydrolysis reaction

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12
Q

What’s an example of energy coupling using ATP

A

the transmembrane sodium-potassium pump

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13
Q

What is energy needed for in energy coupling with the pump

A

drives Na+ out of the cell and K+ into the cell

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14
Q

What can the inorganic phosphate released in ATP hydrolysis be used to do

A

Used to phosphorylate other compounds

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15
Q

What affect does phosphorylation have on compounds

A

makes the compounds more reactive

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16
Q

What’s the equation for the resynthesis of ATP

A

ADP + Pi (+energy) —> ATP + H2O

17
Q

How is ATP resynthesised

A

By the condensation of ADP and an inorganic phosphate

18
Q

What is ATP resynthesis catalysed by

A

the enzyme ATP synthesis during photosynthesis or respiration

19
Q

What’re the 3 types of activity cells require energy for

A
  • Synthesis
  • transport
  • movement
20
Q

Which bond is broken to produce energy when breaking down ATP

A

weak bond in the last phosphate group in ATP

21
Q

What happens when ATP is hydrolysed

A

forms ADP

22
Q

What makes ATP a bad long term energy store

A

instability of the phosphate groups

23
Q

How does cellular respiration occur

A

reattaching a phosphate group to an ADP molecule (phosphorylation)

24
Q

Does ATP resynthesis occur quickly or not

A

Resynthesis occurs fast

25
Q

Do cells need a large source of ATP

A

No

26
Q

What’re the 5 properties of ATP

A
  • small
  • water soluble
  • contains bonds between phosphates with intermediate energy
  • releases energy in small quantities
  • easily regenerated

Biology assessment 2 (9 decks)

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