BIOMOLECULES AND ENZYMES

BIOLOGY

NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which has phosphate groups?
A
DNA
B
RNA
C
Both
D
None of the above
Explanation: 

Detailed explanation-1: -Adenosine triphosphate (ATP) has one phosphate ester bond and two phosphate anhydride bonds.

Detailed explanation-2: -ADP, the “uncharged” version of the molecule, stands for adenosine diphosphate. The word diphosphate indicates that the molecule has 2 phosphate (PO3) groups.

Detailed explanation-3: -Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base.

Detailed explanation-4: -It is found in the genetic material DNA and RNA, and is also in molecules such as adenosine triphosphate (ATP) that provide energy to cells. Phosphates can form phospholipids, which make up the cell membrane.

Detailed explanation-5: -A free, unincorporated nucleotide usually exists in a triphosphate form; that is, it contains a chain of three phosphates. In DNA, however, it loses two of these phosphate groups, so that only one phosphate is incorporated into a strand of DNA.

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