Casparian strips are present in the ______ of the root

Options

A. epiblema
B. cortex
C. pericycle
D. endodermis

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of the Root:**
- The root is made up of several layers, including the outer epidermis, cortex, endodermis, and vascular tissue.

2. **Identifying the Casparian Strip:**
- The Casparian strip is a band of cell wall material deposited with suberin, which is a waxy substance. This strip is found in the endodermis layer of the root.

3. **Function of the Casparian Strip:**
- The main function of the Casparian strip is to regulate the movement of water and solutes into the vascular system of the plant. It acts as a barrier, making the endodermis impermeable to water and preventing the loss of water from the root.

4. **Analyzing the Options:**
- The options provided are:
- a) Epiblema (outer epidermis of root)
- b) Cortex
- c) Pericycle
- d) Endodermis
- The correct answer is option d) Endodermis, as this is where the Casparian strips are located.

5. **Conclusion:**
- Therefore, the Casparian strips are present in the endodermis of the root.

**Final Answer:**
Casparian strips are present in the **endodermis** of the root.

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