[Campbell Biology P.226] Based on Figure 9.15, what is the maximum net ATP yield per molecul... | Practice Question

Based on Figure 9.15, what is the maximum net ATP yield per molecule of glucose during cellular respiration, and what accounts for the variability in the ATP produced by oxidative phosphorylation?

  • A: About 30 or 32 ATP; the varying efficiency of glycolysis.
  • B: About 26 or 28 ATP; the different types of substrate-level phosphorylation.
  • C: About 30 or 32 ATP; the dependence on which shuttle transports electrons from NADH in cytosol.
  • D: About 2 ATP; the presence or absence of oxygen for aerobic respiration.

Explanation

Figure 9.15 shows a 'Maximum per glucose: About 30 or 32 ATP'. The variability 'about 26 or 28 ATP' for oxidative phosphorylation is explicitly stated to depend 'on which shuttle transports electrons from NADH in cytosol'.