Question

ATP is
(a)Adenosine D-ribose triphosphate
(b)Adenosine L-ribose triphosphate
(c)Adenine D-ribose triphosphate
(d)Adenine L-ribose triphosphate

Answer 1

This is the high energy currency of the cell. This is an organic molecule responsible for driving nearly all cellular mechanisms and processes in living organisms.

Complete answer:
ATP is Adenine D-ribose triphosphate. ATP stands for Adenosine triphosphate. This is a nucleotide capable of storing and supplying the energy needed by the cells.

Additional Information: -ATP is a nucleotide which is made up of an adenosine molecule that is an adenine base (Nitrogen base) attached to a ribose sugar.
-This adenosine is further connected to three phosphate groups by phosphoanhydride bonds.
-When only one phosphate group is attached to adenosine this compound is known as adenosine monophosphate (AMP), when one more group is attached, this becomes adenosine diphosphate (ADP), and when the third one is added, adenosine triphosphate (ATP) is formed.
-Now comes sugar, the sugars which are present in the nucleotide are ribose or deoxyribose. The difference between these sugars is the presence of the hydroxyl group on the 2’ Carbon of D-ribose and absence on the 2’ carbon of the deoxyribose sugar.
-From the above discussion, we can say that,
Adenine + D-ribose sugar + 3 phosphate group = ATP
-When ATP is hydrolyzed and converted to adenosine diphosphate (ADP), energy is released. The removal of one phosphate group releases 7.3 kilocalories per mole, or 30.6 kilojoules per mole, under standard conditions.
-This ATP is produced during the cellular respiration that occurs in cytosol and mitochondria.
So, the correct answer is ‘Adenine D-ribose triphosphate ’.

Note: -Karl Lohmann was the first one to discover the ATP molecule.
-In 1948, Alexander Todd synthesized the first ATP molecule biochemically.
-ATP is one of the monomers required in the synthesis of RNA promoted by enzyme RNA polymerase.