Question

The rates of O₂ and 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 O₂ was added at the time marked X. The data indicate that?

A) these bacteria don't use O₂.
B) these bacteria get more energy anaerobically.
C) aerobic metabolism is more efficient than fermentation.
D) these bacteria cannot grow anaerobically.

Answer 1

The data indicates that these bacteria get more energy anaerobically.

Step-by-step explanation:

The rates of O₂ and glucose consumption by a bacterial culture can provide information about the bacteria's metabolic processes and their response to the presence of oxygen. From the given data, it can be concluded that;

• Option B) these bacteria get more energy anaerobically. The data shows that glucose consumption increases significantly after the addition of O₂, indicating that the bacteria prefer anaerobic respiration, which provides more energy than fermentation.