Texas FFA Nursery Landscape Practice Exam

Some vines use what structure to support themselves as they climb?

1. A. Stems

2. B. Aquatic roots

3. C. Tendrils

4. D. Tap roots

The correct answer is: C. Tendrils

Vines utilize tendrils as specialized structures to support themselves as they climb. Tendrils are thin, spiraling structures that can be sensitive to touch, allowing them to latch onto nearby supports such as fences, trees, or other plants. This climbing mechanism enables vines to gain elevation, accessing sunlight for photosynthesis and improving their chances for survival and growth. Tendrils often curl around support structures, anchoring the vine and reducing the strain on the main stem, which can be particularly important for plants that grow in competitive environments. Tendrils are distinct from other structures. Stems provide the overall support for the plant itself, but they are not specialized for climbing. Aquatic roots are adapted specifically for plants that grow in water, facilitating absorption of nutrients, while tap roots serve a different purpose by anchoring deeper into the soil for water and nutrient uptake. Thus, tendrils are uniquely suited to the climbing habits of many vine species, allowing them to thrive in various environments.