Question

In plant roots, the Casparian strip _ Group of answer choices (A) aids in the uptake of nutrients; (B) provides energy for the active transport of minerals into the center of the root (C) ensures that all minerals are absorbed from the soil in equal amounts (D) ensures that all water and dissolved substances pass through a cell membrane before entering the center of the root

Answer 1

Answer:

Option-D

Explanation:

Casparian strips are the strips or band composed of a hydrophobic substance called the suberin which forms the ring-like structure in the endodermis of the vascular plants.

The Casparian strips are present around the vascular bundles in the endodermis to allow the uptake of the selective nutrients as the substance has to pass through the cell membrane before it enters the centre of the root or stele or vascular bundles.

The Casparian strips allow the movement of a substance through symplast mode only, therefore, is ensures the substance to pass through the cell membrane.

Thus, Option-D is correct.