Read the following characteristics (I - IV) and identify the structure to which these features correspond
I. Cortex is made up of several layers of thin walled parenchyma cells without any intercellular spaces.
II Endoderm is made up of a single layer of barrel - shaped cells without any intercellular spaces.
III . Few layers of thick - walled parenachymatous cell forms pericycle.
IV. Pith is small or inconspicuous.
V. Conjunctive tissue present , and 2 to 4 xylem and phloem patches.

Options

A. Dicot root
B. Dicot stem
C. Monocot root
D. Monocot stem

Answer

To identify the structure corresponding to the given characteristics, we will analyze each characteristic step by step.

### Step 1: Analyze the Cortex
- **Characteristic I**: "Cortex is made up of several layers of thin-walled parenchyma cells without any intercellular spaces."
- In dicot roots, the cortex is typically composed of multiple layers of parenchyma cells, which are thin-walled and closely packed without intercellular spaces.

**Hint**: Look for structures where the cortex is made of thin-walled parenchyma cells.

### Step 2: Analyze the Endodermis
- **Characteristic II**: "Endoderm is made up of a single layer of barrel-shaped cells without any intercellular spaces."
- The endodermis in dicot roots is a single layer of cells that are barrel-shaped and tightly packed, which is a defining feature of dicot roots.

**Hint**: Identify structures with a single layer of tightly packed cells in the endodermis.

### Step 3: Analyze the Pericycle
- **Characteristic III**: "Few layers of thick-walled parenchymatous cells form pericycle."
- The pericycle in dicot roots consists of a few layers of thick-walled parenchyma cells, which is important for the formation of lateral roots and cork cambium.

**Hint**: Look for structures with a thick-walled pericycle that contributes to lateral root formation.

### Step 4: Analyze the Pith
- **Characteristic IV**: "Pith is small or inconspicuous."
- In dicot roots, the pith is often small or may even be absent, which distinguishes them from monocot roots where the pith is usually well-developed.

**Hint**: Consider structures where the pith is either small or absent.

### Step 5: Analyze the Vascular Bundles
- **Characteristic V**: "Conjunctive tissue present, and 2 to 4 xylem and phloem patches."
- Dicot roots typically have a few vascular bundles (2 to 4) arranged in a ring, with conjunctive tissue present between them.

**Hint**: Identify structures with a limited number of vascular bundles and conjunctive tissue.

### Conclusion
Based on the analysis of all the characteristics, we can conclude that the structure corresponding to these features is the **dicot root**.

### Final Answer
The structure corresponding to the given characteristics is the **dicot root**.