Refer to the figure below, and then answer the question that follows.

-For this type of transport to take place,which of the following must be true about the interior and exterior environments?

Question

Refer to the figure below, and then answer the question that follows.
 
-For this type of transport to take place,which of the following must be true about the interior and exterior environments?

Quizplus · Accepted Answer

In this figure, glucose is being transported from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). Therefore, the glucose concentration must be higher outside the cell than inside the cell for this type of transport to take place. Choice A is incorrect because it suggests the opposite - that the amount of glucose outside the cell is lower than the interior concentration. Choice C is incorrect because if the concentrations were the same on both sides, there would be no concentration gradient and no net movement of glucose. Choice D is also incorrect because although a transport protein is involved in this process, the concentration gradient of glucose is still important for the direction of transport.

Refer to the Figure Below, and Then Answer the Question