ATP Energy from catabolism Energy for cellular work ADP P 69) Which of the follo

Question

ATP Energy from catabolism Energy for cellular work ADP P 69) Which of the following is the most correct interpretation of the figure? A) Inorganic phosphate is created from organic phosphate. B) Energy from catabolism can be used directly for performing cellular work. C) ADP + i are a set of molecules that store energy for catabolism. D) ATP is a molecule that acts as an intermediary to store energy for cellular work E) acts as a shuttle molecule to move energy from ATP to ADP. Answer: D Topic: Concept 8.3 Skill: Application/Analysis

Explanation / Answer

The correct option is D) ATP is a molecule that acts as an intermediary to store energy for cellular work.

ATP acts as an intermediary between endergonic and exergonic processes. Conservation of energy in the form of high energy phosphate bonds is one of the unifying components of energy transfer in all living organisms. To do work in the cell, ATP molecule removes one of the phosphate bond and form ADP and Pi. Then the ADP is usually immediately recycled in the mitochondria and comes out again as ATP.

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