Which of these most likely does not involve active transport across membranes? Select one: a. Movement of mineral nutrients into the cells of the root cortex b. Movement of sugar from one sieve element to the next through the symplast of the phloem c. The movement of mineral nutrients from the apoplast to the symplast d. The movement of sucrose from mesophyll cells into sieve-tube members in maize (i.e. phloem loading).

1. Which of these most likely does not involve active transport across membranes?
Select one:
a.
Movement of mineral nutrients into the cells of the root cortex
b.
Movement of sugar from one sieve element to the next through the symplast of the phloem
c.
The movement of mineral nutrients from the apoplast to the symplast
d.
The movement of sucrose from mesophyll cells into sieve-tube members in maize (i.e. phloem
loading)