Figure 9.3
-An organism is discovered that consumes a considerable amount of sugar, yet does not gain much weight when denied air. Curiously, the consumption of sugar increases as air is removed from the organism's environment, but the organism seems to thrive even in the absence of air. When returned to normal air, the organism does fine. Which of the following best describes the organism?

Question

Figure 9.3 
-An organism is discovered that consumes a considerable amount of sugar, yet does not gain much weight when denied air. Curiously, the consumption of sugar increases as air is removed from the organism's environment, but the organism seems to thrive even in the absence of air. When returned to normal air, the organism does fine. Which of the following best describes the organism?

Quizplus · Accepted Answer

The organism's ability to consume sugar in the absence of air and thrive suggests that it is capable of both aerobic and anaerobic respiration. This is a characteristic of facultative anaerobes, which can meet their energy needs through either pathway depending on the availability of oxygen. Therefore, option E is the best choice.

Figure 9.3 -An Organism Is Discovered That Consumes a Considerable Amount of Considerable