Plant Climbing Structures: Tendrils Explained
Certain plant structures are adapted for climbing, aiding the plant in seeking sunlight and support. The key characteristic is sensitivity to touch, allowing them to grasp onto surfaces.
Identifying Climbing Adaptations
- Tendrils: These are specialized leaf, stem, or petiole modifications. They exhibit thigmotropism, meaning they grow or coil in response to touch. When a tendril touches a solid object, it wraps around it, providing anchorage and support for the plant to climb upwards.
- Thorns: Thorns are sharp, woody structures derived from stems or leaves, primarily serving as protection against herbivores. They do not typically aid in climbing through touch sensitivity.
- Flowers: Flowers are the reproductive parts of a plant and are not involved in the physical act of climbing or support.
- Seeds: Seeds are involved in plant reproduction and dispersal, playing no role in a plant's immediate climbing mechanism.
Therefore, tendrils are the structures specifically designed for climbing, characterized by their sensitivity to touch.
Important Questions from Botany
One advantage of sexual reproduction over asexual reproduction is that it helps species to survive over long evolutionary time. This is because sexual reproduction produces :
During a laboratory experiment, a student immerses epidermal leaf peel in a hypertonic solution. After some time, the student examined the cells under a microscope and observed that:
The breakdown of glucose in cytoplasm results in the formation of
After fertilization, the fruit and the seed are produced by
- Which one of the following groups is called 'amphibians of plant kingdom'?
