CELL RESPIRATION
ATP ADENOSINE TRIPHOSPHATE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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between ribose and the 1st phosphate group
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between the first and second phosphate group
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between the second and third phosphate group
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Detailed explanation-1: -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.
Detailed explanation-2: -These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.
Detailed explanation-3: -The last phosphate bond holds the most energy (approx. 7 kcal/mole). It is called the pyrophosphate bond. In order to release it’s energy to the body, ATP breaks down into ADP [Adenosine Diphosphate(2 phosphates)] and an inorganic phosphate group and releases energy from the pyrophosphate bond.
Detailed explanation-4: -ATP stands for adenosine triphosphate. The word triphosphate indicates that the molecule has 3 phosphate groups. ATP stores energy within the bonds between phosphate groups, especially the second and third. This bond is a source of potential chemical energy, and it’s kind of like a compressed spring.
Detailed explanation-5: -The majority of energy in an ATP molecule is stored in the bond between the last and middle phosphate groups.