Which of the Following Does Not Involve Active Transport Across

question 101

Multiple Choice

Which of the following does not involve active transport across membranes?

• A) the movement of mineral nutrients from the apoplast to the symplast
• B) the movement of mineral nutrients from mesophyll cells into xylem cells
• 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

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Definitions:

Disposable Income

Income available for spending and saving after income taxes have been accounted for.

C + I

An economic formula representing consumer spending (C) plus investment spending (I), components of a country's GDP calculation.

Disposable Income

Households' financial resources for expenditure and savings following income tax deductions.

Savings

Money set aside for future use rather than spent immediately.