Chemotropism in Plants
Chemotropism is a type of tropism where the growth of an organism is directed by a chemical stimulus. In plants, chemotropism plays a crucial role in various physiological processes such as root growth towards water and nutrients.

Example: Root Growth towards Soil Nutrients
- When a plant grows its roots towards soil nutrients, it is an example of positive chemotropism.
- The roots of the plant release certain chemicals that attract soil nutrients towards them.
- The concentration of these chemicals is higher in the root region, causing the roots to grow towards the source of nutrients.

Mechanism of Chemotropism
- The process of chemotropism in plants involves the perception of chemical gradients by specialized cells.
- These cells detect the difference in concentration of the chemical stimulus and communicate this information to the rest of the plant.
- This communication triggers a series of growth responses, leading to the directional growth of the plant towards or away from the chemical stimulus.

Significance of Chemotropism
- Chemotropism helps plants in efficiently utilizing resources present in the environment.
- By growing towards sources of nutrients, plants can enhance their growth and development.
- It also helps in responding to environmental cues and adapting to changing conditions.
In conclusion, chemotropism is an important mechanism in plants that allows them to respond to chemical stimuli in their environment. By regulating growth in response to these stimuli, plants can optimize their resource uptake and overall fitness.