The growth patterns of the plants such as ivy and pole beans depend and controlled by various physiological processes. These physiological process helps in the plants to grow in a particular direction so they can get nutrition and resources they require for their growth and development.
These processes are Gravitropism, phototropism, and thigmotropism. Gravitropism ensures that plant roots grow towards the soil so they can get water and other nutrients. Phototropism is the other process that allows the plant to move in the direction of the light so they can get enough light for the photosynthesis process. Thigmotropism is the process or defense mechanism that and movement by touch stimulus.
