Auxin's Polar Transport Relies in Part on the Fact That

Multiple Choice

Auxin's polar transport relies in part on the fact that auxin is a weak acid that

A) binds H⁺ in high pH conditions.
B) ionizes to release H⁺ in neutral pH conditions.
C) forms a base in the cell wall.
D) is passively transported across cells.
E) pumps protons across the cell membrane.