Figure 5.6 -The rates of O₂and glucose consumption by a bacterial culture are shown in Figure 5.6. Assume a bacterial culture was grown in a glucose medium without O₂. Then O₂was added at the time marked X. The data indicate that A) these bacteria don't use O₂. B) these bacteria cannot grow anaerobically. C) aerobic metabolism is more efficient than fermentation. D) these bacteria get more energy anaerobically.

Question

Quizplus · Accepted Answer

The graph shows that the rate of glucose consumption is higher when the culture is grown aerobically (before X) compared to when it is grown with O₂ present (after X), indicating that aerobic metabolism is more efficient than fermentation. There is no evidence to suggest that the bacteria cannot use O₂ or grow anaerobically, and it is unclear whether they get more energy anaerobically.

Figure 5.6 -The Rates of O2 and Glucose Consumption by a Bacterial

Figure 5.6 -The Rates of O₂and Glucose Consumption by a Bacterial