Within the roots of many vascular plants, Casparian strips are present inthe:a) Cortexb) Epidermisc) Steled) Endodermis

Analysis of the Question

The question pertains to plant anatomy, specifically focusing on the structure and location of Casparian strips within vascular plants.

Relevant Concepts

Casparian strips are specialized structures found in the endodermis of roots in many vascular plants. They are composed of suberin, a waxy substance that helps regulate the movement of water and dissolved substances between the soil and the vascular system of the plant.

Breakdown of the Options

1. Cortex: The outer layer of the root, primarily involved in storage and transport.
2. Epidermis: The outermost layer, primarily protective and involved in absorption.
3. Stele: The central part of the root that includes vascular tissues (xylem and phloem).
4. Endodermis: The innermost layer of the cortex, specifically where Casparian strips are located.

Final Answer

The correct answer is d) Endodermis. Casparian strips are present within the endodermis of the roots of many vascular plants, playing a crucial role in regulating the flow of water and nutrients into the plant.