Use the figure below to answer the following question. 
Figure 1A.5.2
-If the line in Figure 1A.5.2 were to continue down to the x-axis,what would the value of x be when y is zero?
Definitions:
Cellular Respiration
Cellular respiration is the process by which cells generate ATP, the energy currency, by breaking down glucose and other food molecules in the presence of oxygen.
Glucose
A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.
ATP
Stands for adenosine triphosphate, a molecule that carries energy within cells for metabolism.
Feedback Inhibition
A regulatory mechanism in which the end product of a metabolic pathway inhibits an upstream process, thus controlling the rate of the pathway.
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