Which among the structure has an elongated , unbranched, pointed , and needle-like apices ?

Options

A. Phloem parenchyma
B. Phloem fibre
C. Companion cells
D. Sieve tubes

Answer

To solve the question "Which among the structure has an elongated, unbranched, pointed, and needle-like apices?", we will analyze the options related to plant structures, particularly focusing on the components of phloem.

### Step-by-Step Solution:

1. **Understanding the Question**:
- We need to identify a structure that is characterized by being elongated, unbranched, pointed, and having needle-like tips.

2. **Analyzing Phloem Components**:
- The phloem is a type of vascular tissue in plants responsible for the transport of nutrients, particularly sugars.
- The main components of phloem include:
- **Sieve Tubes**: These are cylindrical and arranged longitudinally, but they are not pointed or needle-like.
- **Phloem Parenchyma**: This tissue is primarily involved in storage and does not have the characteristics described in the question.
- **Phloem Fibers**: These are elongated, unbranched, and have pointed, needle-like apices.

3. **Identifying the Correct Structure**:
- Among the components analyzed, phloem fibers fit the description perfectly. They are elongated, unbranched, and have pointed, needle-like tips, which provide strength to the plant.

4. **Conclusion**:
- Therefore, the correct answer to the question is **phloem fibers**.