Question

Which of the following statements is true for a molecule that is phosphorylated?
A) It has been reduced as a result of a redox reaction involving the loss of an inorganic phosphate.
B) It has a decreased chemical energy and is less likely to provide energy for cellular work.
C) It has been oxidized as a result of a redox reaction involving the gain of an inorganic phosphate .
D) It has increased chemical potential energy that may be used to do cellular work.

Answer 1

Answer:

The correct appropriate is Option D.

Explanation:

• The phosphorylation mechanism of both a chemical compound, either through inorganic phosphate conversion other than by phosphate conversion from yet another biological phosphate.  
• Those have improved chemical energy capacity which could be used to do cellular function.  

Some other possible alternatives are not connected to the situation described. So, the solution above is the right one.

Answer 2

The statement 'it has increased chemical potential energy that may be used to do cellular work.' is TRUE about a molecule that is phosphorylated (Option D).

• Phosphorylation is a posttranslational protein modification that plays a fundamental role in many cellular processes.

• Phosphorylation increases the potential energy of a molecule by adding a phosphate group that contains a high-energy phosphate bond.

• The energy released by this phosphate bond can be used to drive many cellular processes.

In conclusion, the statement 'it has increased chemical potential energy that may be used to do cellular work.' is TRUE about a molecule that is phosphorylated (Option D).

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