In most environments, the nutrient concentrations outside the cell are lower than inside the cell. How can a microbial cell obtain nutrients if the concentration gradient is NOT favorable?

Question

Quizplus · Accepted Answer

Active, energy-dependent transport allows the microbial cell to move nutrients against the concentration gradient, from areas of low concentration to areas of high concentration. This process requires energy in the form of ATP, but it allows the cell to obtain nutrients even when the concentration gradient is not favorable.

In Most Environments, the Nutrient Concentrations Outside the Cell Are