In which of the following pairs of parts of a flowering plants is epidermis absent?

Options

A. Root tip and shoot up
B. shot bud and floral bud
C. ovule and seed
D. petiole and pedicel

Answer

To determine which pair of parts of a flowering plant lacks epidermis, we can follow these steps:

### Step 1: Understand the Structure of Plant Parts
- The epidermis is the outermost layer of cells in plants, serving as a protective barrier.
- It is typically present in most parts of the plant, including roots, stems, and leaves.

### Step 2: Identify the Given Plant Parts
- The question provides several plant parts: root tip, shoot tip, short bud, floral bud, ovule, seed, petiole, and pedicle.

### Step 3: Analyze Each Part for the Presence of Epidermis
- **Root Tip**: This is a region of active growth where cells are continuously dividing (meristematic tissue). It does not have a fully developed epidermis.
- **Shoot Tip**: Similar to the root tip, the shoot tip is also a region of active cell division and does not have a developed epidermis.
- **Short Bud**: Buds typically have an epidermis as they are not actively dividing like meristematic tissue.
- **Floral Bud**: This part also has an epidermis as it develops into flowers.
- **Ovule**: The ovule is enclosed within the ovary and does not have an epidermis.
- **Seed**: Seeds have protective layers but are not classified as having an epidermis in the same sense as stems and leaves.
- **Petiole**: The petiole connects the leaf to the stem and has an epidermis.
- **Pedicle**: The pedicle is the stalk of a flower and has an epidermis.

### Step 4: Conclude the Answer
- The parts that lack epidermis are the **root tip** and **shoot tip**. Therefore, the correct answer is the pair: **root tip and shoot tip**.

### Final Answer
The pair of parts of a flowering plant in which epidermis is absent is the **root tip and shoot tip**.

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