How many phosphoester (phosphate ester) and phosphoanhydride bonds are in adenosine monophosphate (amp) and adenosine diphosphate

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The correct answer is -

Prof. Carmelo Hilpert · Accepted Answer

The bond between CH2 and P of phosphate through O is called phosphoester bond. Only one such bond is present in both AMP and ADP.Link of phosphate groups through O by elimination of water molecule is called phosphoanhydride bond.In AMP, only single phosphate group present so no phosphoanhydride bond is present. But inADP, two phosphate groups are linked by one phospoanhydride bond.AMP  1  0ADP   1  1

Prof. Carmelo Hilpert · Answer

The correct answer is -The number of phosphoester bond in- AMP (adenosine monophosphate) = 1ADP ( adenosine diphosphate) = 1 The number of phosphoanhydride  bonds in -AMP = 0ADP = 1Phosphoester bond is formed when the alpha phosphate (that is the first phosphate) present in ADP and AMP links to the 5' carbon of ribose sugar through oxygen. On the other hand, Phosphoanhydride bond is formed between two phosphate. As ADP has two phosphate, thus it contains one phosphoanhydride bond and the first phosphate is linked to ribose via one phosphoester bond. AMP has single phosphate, so no phosphoanhydride bond is there, only one phosphoester bond is present in it.

Prof. Carmelo Hilpert · Answer

Phosphate ester bonds exist in adenosine and phosphoanhydride bonds are found in ATP. I think for every two A's, you have 1 phosphate ester bond. Since there are 3 P's in ATP and I think there would only be 2 phosphoanhydride bonds. Hope this answers the question.

Dr. Reggie Bosco DVM

How many phosphoester (phosphate ester) and phosphoanhydride bonds are in adenosine monophosphate (amp) and adenosine diphosphate

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