Researchers studied the relationship between glucose concentration, oxygen level, and ATP production in one type of mammalian cell. Cells were isolated and cultured in growth medium containing either 1.5⁢mM glucose or 25 mM glucose and at oxygen levels that varied from 0% to 21%. The researchers determined the concentration of ATP per cell under the different conditions. The ATP concentrations are shown as relative to the maximum ATP concentration obtained when cells were cultured in the presence of 25 mM glucose and 21% oxygen, standard culture conditions. The data are shown in Table 1.(a) Describe the role of oxygen in cellular respiration.(b) Using the template, construct an appropriately labeled graph to represent the data in Table 1.The figure presents an empty 25 by 15 grid.(c) Describe the relationship between the concentration of glucose in the culture medium and the ATP concentration in the cells.(d) In a further experiment, the researchers add a compound to the cell growth medium that both binds and releases protons (H+) and also passes through lipid membranes. Predict the effect of this added compound on ATP production by the cells. Justify your prediction.

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