When a potassium ion (K⁺)moves from the soil into the vacuole of a cell on the surface of a root,it must pass through several cellular structures.Which of the following correctly describes the order in which these structures will be encountered by the ion? A)plasma membrane → primary cell wall → cytoplasm → vacuole B)secondary cell wall → plasma membrane → primary cell wall → cytoplasm → vacuole C)primary cell wall → plasma membrane → cytoplasm → vacuole D)primary cell wall → plasma membrane → lysosome → cytoplasm → vacuole E)primary cell wall → plasma membrane → cytoplasm → secondary cell wall → vacuole

Question

Quizplus · Accepted Answer

The potassium ion must first cross the primary cell wall and then the plasma membrane before entering the cytoplasm and eventually the vacuole. The secondary cell wall is only present in certain plant cells and is not encountered by the ion in this case. Lysosomes are organelles involved in digestion and are not relevant to the movement of potassium ions into vacuoles.

When a Potassium Ion (K+)moves from the Soil into the Vacuole

When a Potassium Ion (K⁺)moves from the Soil into the Vacuole