The Innermost Layer of the Root Cortex is The

Question

The innermost layer of the root cortex is the
A)core.
B)pericycle.
C)endodermis.
D)pith.
E)vascular cambium.

Accepted Answer

The innermost layer of the root cortex is the endodermis. This layer is important in controlling the movement of water and nutrients into the vascular cylinder, as it is composed of cells with Casparian strips that prevent the movement of substances between cells. The pericycle is the outermost layer of the vascular cylinder, the pith is located in the center of the root, and the vascular cambium is a lateral meristem that produces secondary xylem and phloem in woody plants. None of these options accurately describe the innermost layer of the root cortex.