The given diagram shows the histology of a developing shoot of a plant.The labelled structure gives rise to
Correct answer: B. Leaves
- A. Bark
- B. Leaves
- C. Lateral shoots
- D. Vascular cambium
Explanation
Leaf Primordia: These are young leaf tissues that form on the flanks of the SAM and will develop into mature leaves. So option B is correct. Leaf primordia do not give rise to bark, lateral shoots and vascular cambium. So A,C and D are incorrect.
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About Plant Growth Regulators
Plant growth regulators are chemical messengers that control growth, development and responses to the environment. The topic covers auxins, gibberellins, cytokinins, abscisic acid and ethylene, including cell elongation, apical dominance, tropisms, seed germination, dormancy, fruit ripening and leaf fall, with growth promoters distinguished from inhibitors.
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