Which of the following is present in a monocot stem ?

Options

A. 1)Phloem parenchyma
B. 2)Medullary rays
C. 3)Pericycle
D. 4)Xylem parenchyma

Answer

To determine which of the following is present in a monocot stem, we need to analyze the options provided.

**Step 1: Understand the structure of a monocot stem.**
Monocot stems have a unique arrangement of vascular bundles. In monocots, the vascular bundles are scattered throughout the stem rather than arranged in a ring as seen in dicots.

**Step 2: Analyze the options.**
1. **Phloem parenchyma** - This is a type of tissue that is generally present in both monocots and dicots; however, in monocots, it is not present in the same way as in dicots.
2. **Medullary rays** - These are structures that are typically found in dicot stems and are absent in monocot stems.
3. **Pericycle** - This is a layer of cells found in the roots of plants, not in the stems. It is absent in monocot stems.
4. **Xylem parenchyma** - This is a type of tissue that is indeed present in monocot stems. In monocots, xylem and phloem are found in close proximity to each other.

**Step 3: Conclusion.**
Based on the analysis, the only option that is present in a monocot stem is **Xylem parenchyma**. Therefore, the correct answer is option 4.

**Final Answer: Option 4 - Xylem parenchyma is present in a monocot stem.**

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