BIOCHEMISTRY
ENZYMES AND METABOLISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The bond between the first and second phosphate is broken to release energy.
|
|
|
The bond between the adenine and the sugar is broken to release energy.
|
|
|
The bond between the sugar and phosphates are broken and release energy.
|
|
|
The bond between the second and third phosphate are broken to release energy.
|
Detailed explanation-1: -If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.
Detailed explanation-2: -When energy is needed immediately in the cell, ATP can be converted into ADP and an inorganic phosphate group. Breaking down the bond between the second and third phosphate groups converts ATP into adenosine diphosphate (ADP) and an inorganic phosphate group.
Detailed explanation-3: -These phosphate groups all carry a negative charge, and the bonds between them are unstable and high in energy. When phoshpate groups are released from ATP by hydrolysis, the molecule takes on a more stable conformation, and therefore hydrolysis releases energy.
Detailed explanation-4: -This occurs when a molecule of adenosine diphosphate (ADP) uses the energy released during cellular respiration to bond with a third phosphate group, becoming a molecule of ATP. So the energy from cellular respiration is stored in the bond between the 2nd and 3rd phosphate groups of ATP.
Detailed explanation-5: -The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups. ATP is commonly referred to as the “energy currency” of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups.