The Driving Force That Pushes the Root Tip Through the Soil

Question

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.

Accepted Answer

The driving force that pushes the root tip through the soil is primarily the elongation of cells behind the root apical meristem. As these cells elongate, they push the root tip forward through the soil. While continuous cell division in the root cap and apical meristem are important for root growth and development, they are not the primary driving force for pushing the root tip through the soil. Elongation of root hairs is important for nutrient uptake but is not the primary driving force for root growth through the soil.