Class 10 Biology Chapter 6
Chemical Coordination in Plants
Important Questions

Chemical coordination in plants refers to the intricate system by which plants use chemical substances, known as hormones, to regulate various physiological processes. Unlike animals, plants lack a nervous system, making chemicals signalling their primary means of communication within their own structures and with the external environment. These hormones play a pivotal role in coordinating growth, development, and responses to environmental stimuli.
There are several key plant hormones, each with its specific functions. For instance, auxins are responsible for controlling cell elongation and phototropism (the bending of plant parts towards light), gibberellins promote stem elongation and fruit growth, cytokinins regulate cell division and differentiation, abscisic acid is involved in stress responses and dormancy, and ethylene influences fruit ripening and senescence.
Chemical coordination also encompasses the interaction between different hormones, creating a delicate balance that ensures plants can adapt and thrive in their ever-changing surroundings. By understanding this complex network of chemical signals and responses, scientists and botanists can manipulate plant growth and development, which has practical applications in agriculture and horticulture.
In the context of ICSE Class 10 Biology, the study of chemical coordination in plants is crucial, as it not only enriches our understanding of plant biology but also offers valuable insights into the strategies plants employ to survive and thrive in their environment.