The driving force that pushes the root tip through the soil is primarily
A)continuous cell division in the root cap at the tip of the root.
B)continuous cell division just behind the root cap in the centre of the apical meristem.
C)elongation of cells behind the root apical meristem.
D)the elongation of root hairs.
E)continuous cell division of root cap cells.

Question

Quizplus · Accepted Answer

The elongation of cells behind the root apical meristem is the primary driving force that pushes the root tip through the soil. While there is continuous cell division in the root cap and apical meristem, this contributes to the overall growth of the root rather than the pushing force. Elongation of root hairs is important for absorption but not for pushing through the soil.

The Driving Force That Pushes the Root Tip Through the Soil