Ampelopsis is able to grow on vertical walls by means of

Options

A. Hooks
B. Prickles
C. Clinging roots
D. Adhesive tendril tips.

Answer

### Step-by-Step Solution:

1. **Identify the Plant**: The plant in question is Ampelopsis, commonly known as the pepper vine or porcelain berry. It belongs to the family Vitaceae.

2. **Understand the Growth Habit**: Ampelopsis is a climbing shrub, which means it has the ability to grow upwards and cling to vertical surfaces.

3. **Determine the Mechanism of Climbing**: To understand how Ampelopsis climbs, we need to look at the structures it uses. The options provided are:
- Hooks
- Prickles
- Clinging roots
- Adhesive tendril tips

4. **Evaluate Each Option**:
- **Hooks**: While hooks are a climbing mechanism, they are not present in Ampelopsis. Thus, this option is incorrect.
- **Prickles**: Prickles are also climbing structures found in some plants, but they are not found in Ampelopsis. This option is incorrect.
- **Clinging Roots**: Clinging roots are typically found in epiphytes, not in Ampelopsis. Therefore, this option is incorrect.
- **Adhesive Tendril Tips**: Ampelopsis uses tendril tips, which are long, slender, whip-like structures that arise from the stem node. These tendrils are adhesive in nature, allowing them to stick to vertical surfaces and support the climbing habit of the plant.

5. **Conclusion**: The correct answer is that Ampelopsis is able to grow on vertical walls by means of **adhesive tendril tips**.

### Final Answer:
Ampelopsis is able to grow on vertical walls by means of **adhesive tendril tips**.