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In plants towards the centre of the root...

In plants towards the centre of the root, next to endodermis lies a few layers of thick - walled parenchymatous cell referred to as

A

Pith .

B

epidermis.

C

phloem.

D

pericycle

Text Solution

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The correct Answer is:
To solve the question, we need to identify the layers of thick-walled parenchymatous cells located next to the endodermis in the root of a plant. Here’s the step-by-step solution: ### Step-by-Step Solution: 1. **Understanding Root Structure**: - In a plant root, there are several layers of cells, each with specific functions. The endodermis is one of the innermost layers of the cortex, which regulates the flow of water and nutrients into the vascular system. 2. **Identifying the Layer Next to Endodermis**: - Next to the endodermis, there are a few layers of thick-walled parenchymatous cells. These cells provide structural support and can also play a role in storage. 3. **Recognizing the Correct Term**: - The specific layer of thick-walled parenchymatous cells located next to the endodermis is known as the **pericycle**. The pericycle is crucial for the formation of lateral roots and can also contribute to the secondary growth of the root. 4. **Evaluating the Options**: - **Option 1: PIT** - Incorrect, as PIT refers to structures involved in nutrient storage and transport, not the thick-walled cells next to the endodermis. - **Option 2: Epidermis** - Incorrect, as the epidermis is the outermost layer of the root and consists of a single layer of cells. - **Option 3: Phloem** - Incorrect, as phloem is involved in the transport of sugars and is located within the vascular tissue, not next to the endodermis. - **Option 4: Pericycle** - Correct, as it accurately describes the layer of thick-walled parenchymatous cells next to the endodermis. 5. **Conclusion**: - The correct answer to the question is **pericycle**.
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