BIOMOLECULES AND ENZYMES

BIOLOGY

NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are ____ phosphate groups on ATP and ____ on ADP.
A
3 / 2
B
3 / 3
C
2 / 3
D
2 / 2
Explanation: 

Detailed explanation-1: -ATP or adenosine triphosphate is composed of one adenine molecule, a ribose sugar and three phosphate groups. Its chemical formula is C10H16N5O13P3. ADP or adenosine diphosphate is composed of one adenine molecule, a ribose sugar and two phosphate groups.

Detailed explanation-2: -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.

Detailed explanation-3: -The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.

Detailed explanation-4: -ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atom of ribose.

There is 1 question to complete.