CBSE · Class 11 · Biology · Plant Growth and DevelopmentWhich plant hormone is known as the 'stress hormone'?
Step-by-Step Solution
Abscisic acid (ABA) is referred to as the stress hormone because it increases plant tolerance to various kinds of stresses, particularly water stress or drought.
Detailed Options Breakdown
Option : Auxin
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Plant Growth and Development.
Option 1: Gibberellin
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Plant Growth and Development.
Option 2: Abscisic acid (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: Cytokinin
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Plant Growth and Development.
💡 Study Guide: This question tests core syllabus concepts from Plant Growth and Development. For formulas, key summaries, and mock exam reference guides, read the full Plant Growth and Development Revision Notes.