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

---

Definitions:

Broadband Fiber-Optic

A high-speed internet access technology that transmits data through light signals over fiber optic cables, offering faster speeds compared to traditional broadband.

Rural Areas

Regions situated outside towns and cities, often characterized by lower population density and agricultural or natural landscapes, as opposed to urban areas.

Digital Divide

The gap between individuals, households, businesses, and geographic areas at different socioeconomic levels with regard to their access to information and communication technology.

FCC Subsidies

Financial assistance programs provided by the Federal Communications Commission to promote access to telecommunications services in underserved or high-cost areas.