Answered

Certain molecules involved in the citric acid cycle, such as citric acid and oxaloacetate, can be used to make other molecules that are not involved in cellular respiration if the cell needs them. How might this affect the overall process of cellular respiration?


AA single glucose molecule would yield fewer ATP molecules than expected.
BMore water would be produced in the absence of citric acid and oxaloacetate.
CMore heat would be produced since less chemical energy would be harnessed.
DCO2 would build up in the cells instead of being exhaled by the lungs.

Verified Answer :

Final answer:

The diversion of citric acid and oxaloacetate for biosynthesis reduces the number of ATP produced during cellular respiration. This results in a lower energy yield from a single glucose molecule. Thus, fewer ATP molecules are available than expected.


Explanation:

Impact of Molecule Usage on Cellular Respiration

In cellular respiration, the citric acid cycle (also known as the Krebs cycle) plays a crucial role in converting nutrients into energy. Certain molecules like citric acid and oxaloacetate, which are involved in this cycle, can be diverted to synthesize other compounds necessary for the cell's functioning. When these intermediates are used for biosynthesis instead of continuing through the citric acid cycle, the overall energy yield from cellular respiration decreases.

This diversion of molecules can particularly affect the production of ATP (adenosine triphosphate), which is the primary energy currency of the cell. Therefore, the correct answer to the student's question is:

  1. A single glucose molecule would yield fewer ATP molecules than expected.

When important intermediates are removed from the cycle for purposes other than energy production, less energy can be captured, leading to a decrease in ATP production.


Learn more about cellular respiration here:

https://brainly.com/question/54942075


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