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Auxin produced at the apical bud suppresses the growth of lateral buds, resulting in apical dominance.
Ref: NCERT Class 11 Biology Chapter 13: Plant Growth and Development Plant Growth Regulators - Auxins and Gibberellins
Auxin inhibits the growth of lateral buds, maintaining apical dominance.
Ref: NCERT Class 11 Biology Chapter 13: Plant Growth and Development Plant Growth Regulators - Auxins and Gibberellins
Axillary buds (C) is correct here. This is core Phytohormone ALL: once you know the definition or pathway step, Axillary buds is the clear fit. The wrong ones are A) Cytokinin; B) Strigolactone; D) Ethylene. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.
That points to C: Lateral bud growth. Compared with the other options, Lateral bud growth is the one that correctly describes the Auxin Phytohormone concept. The wrong ones are A) Reduced branching; B) Increased auxin; D) Root inhibition. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.
Answer: C) Lateral buds. For Auxin Phytohormone, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Roots; B) Leaves; D) Flowers. Name the process first, then pick the option that describes it — don’t reverse cause and effect.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.
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