Stele is bigger than cortex in the stem of

Options

A. Dicot stem
B. Monocot root
C. Dicot root
D. Both 2 & 3

Answer

To solve the question "Stele is bigger than cortex in the stem of," we will analyze the options provided and understand the concepts of stele and cortex in plant anatomy.

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Cortex**: This is the outer layer of tissue in the stem or root, located just below the epidermis. It primarily serves as storage and is involved in the transport of nutrients.
- **Stele**: This refers to the central part of the stem or root, which includes the vascular tissues (xylem and phloem) responsible for the transport of water, nutrients, and food.

2. **Analyze the Options**:
- **Option 1: Daikon Stem**: In the daikon (a type of radish), the stele is indeed larger than the cortex. This is because the daikon stem is modified for storage, and the vascular tissue (stele) is more developed compared to the cortex.
- **Option 2: Monocot Root**: In monocot roots, the stele is generally smaller than the cortex. Therefore, this option is incorrect.
- **Option 3: Dicot Root**: Similar to monocot roots, dicot roots also have a larger cortex compared to the stele. Hence, this option is also incorrect.
- **Option 4: Both 2 and 3**: Since both options 2 and 3 are incorrect, this option is also incorrect.

3. **Conclusion**:
- The only option where the stele is bigger than the cortex is **Option 1: Daikon Stem**.

Thus, the correct answer is **Option 1: Daikon Stem**.