A

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Q. Coordination in plants is by

  • (A) nervous system
  • (B) enzymes
  • (C) hormones
  • (D) roots
  • Correct Answer - Option(C)
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  • Filed under category Biology
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Explanation by: Admin

Plants do not have a nervous system like animals. Instead, they coordinate their functions through plant hormones (also called phytohormones). These hormones regulate growth, development, and responses to environmental stimuli.

Some key plant hormones include:

  • Auxins – Control cell elongation and phototropism.
  • Gibberellins – Promote stem elongation and seed germination.
  • Cytokinins – Promote cell division.
  • Abscisic Acid (ABA) – Helps in stress responses and stomatal closure.
  • Ethylene – Involved in fruit ripening.

Thus, hormones are responsible for coordination in plants.

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