Cells Elongate in Response to Auxin

Multiple Choice

Cells elongate in response to auxin. All of the following are part of the acid growth hypothesis except

A) Auxin stimulates proton pumps in cell membranes.
B) Lowered pH results in the breakage of cross-links between cellulose microfibrils.
C) The wall fabric becomes looser (more plastic) .
D) Auxin-activated proton pumps stimulate cell division in meristems.
E) The turgor pressure of the cell exceeds the restraining pressure of the loosened cell wall, and the cell takes up water and elongates.