Radical tip is derived from which cell of embryo.

Options

A. Hypophysis
B. Vesicular cell
C. Haustorium
D. Whole suspensor

Answer

To determine which cell of the embryo the radical tip is derived from, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of the Embryo**:
- The embryo of flowering plants consists of various parts including the radical, cotyledons, and the hypophysis. The radical is the embryonic root that will develop into the root system of the plant.

2. **Identifying the Role of Hypophysis**:
- The hypophysis is a specific region in the embryo that plays a crucial role in the development of the radical. It is located at the lower end of the embryo and is associated with the suspensor.

3. **Defining the Radical Tip**:
- The radical tip is the growing point of the root and is derived from the radical meristematic tissues. These tissues are responsible for the growth and development of the root.

4. **Connecting Hypophysis to the Radical**:
- The hypophysis contains cells that contribute to the formation of the radical tip. Therefore, the radical tip is derived from the hypophysis cells.

5. **Evaluating Other Options**:
- Other options such as vesicular cells, hostorium, and suspensor cells do not contribute to the formation of the radical tip. Vesicular cells are involved in storage, hostorium relates to parasitic structures, and suspensor cells mainly support the embryo but do not form the radical.

6. **Conclusion**:
- Based on the above analysis, we conclude that the radical tip is derived from the hypophysis.

### Final Answer:
The radical tip is derived from the hypophysis.

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