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Organic Chemistry

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Phosphoric Acid Chemistry

Question
5 out of 7
 

Phosphoric acid is an integral part of some of the most important biomolecules in our body.

Reaction 1

image\Ch 31 pass, g1.png


Reaction 1 depicts the conversion of phosphoenol pyruvate to pyruvate.

Phosphate is a part of many high-energy compounds in biological systems. Examples include ATP (adenosine triphosphate)) and GTP (guanosine triphosphate).

image\Ch 31 pass, g2.png


The phosphate anhydride bonds present in the ATP molecules are high-energy bonds. Which of the following is true regarding the hydrolysis of these bonds?

A The products of hydrolysis have less energy than that of the reactants.
B The products of hydrolysis have the same energy as that of the reactants.
C The reactants of hydrolysis have less energy than that of the products.
D None of the above
Ans. A According to the passage, the hydrolysis of ATP has a negative change in free energy (ΔG). So it is sensible to say that the products have less energy than that of the reactants.

Phosphoric Acid Chemistry Flashcard List

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