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

question 38

Multiple Choice

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

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