All of the Following Involve Active Transport Across Membranes Except

question 40

Multiple Choice

All of the following involve active transport across membranes except

• A) the movement of mineral nutrients from the apoplast to the symplast.
• B) the movement of sugar from mesophyll cells into sieve-tube elements.
• C) the movement of sugar from one sieve-tube element to the next.
• D) the movement of K⁺ across guard cell membranes during stomatal opening.
• E) the movement of mineral nutrients into cells of the root cortex.

---

Definitions:

Excise Tax

A type of tax imposed on specific goods, services, or activities, often with the goal of discouraging their use or consumption.

Market Situations

Various conditions under which a market operates, influenced by factors like competition, demand, and supply.

Output

The quantity of goods or services produced by a firm, industry, or economy within a given period.

Demand Curve

A graph showing the relationship between the price of a good and the quantity demanded, usually depicting a downward slope, indicating the inverse relationship between price and demand.