Question

In ATP, a high energy bond is present between
A. Nucleoside and phosphate group
B. Sugar and phosphate group
C. Base and phosphate group
D. None of the above

Answer 1

Hint: The energy currency in a cell is referred to as \[ATP\] [Adenosine triphosphate]. This \[ATP\] is a type of nucleotide produced by combining adenine with triphosphate and ribose sugar as a nitrogen base. In cells where energy production is necessary, the \[ATP\] is present through the breaking of the bonds.

Complete answer:
There are three groups of phosphates present in \[ATP\], of which one phosphate is directly attached to the ribose through the phosphate ester bond and is a low energy bond. The bond between the two phosphate groups is known as the phosphorus anhydride bond, and it is a high-energy bond. Since phosphate and oxygen are the constituents of the \[ATP\], the high energy content of this molecule is due to two strong phosphate bonds known as phosphoanhydride bonds in the \[ATP\] molecule. These anhydride bonds are often referred to as high energy bonds based on biochemical reactions.
The \[ATP\] is known as the cell's energy currency. It has 3 phosphates, one of which is linked to the ribose directly with a phosphate ester connection and is a low energy connection, and it is a low energy bond. \[ATP\] has two phosphoanhydride bonds with high energy.
So, choice D- None of the above is the correct answer.

Note: The energy of the bond is also known as mean bond enthalpy or mean bond enthalpy. It is used in a chemical bond to measure the strength of the bond. It can also be stated that this bond energy is the average value of the gaseous phase, the bond-dissociation energy, present in all bond forms of related chemical species.