Growth movement of pollen tube towards the egg is:
Correct answer: B. Chemotropism
- A. Hydrotropism
- B. Chemotropism
- C. Chemotactic
- D. Seismetactic
Explanation
Chemotropism: Chemotropism is the growth movement of a plant part towards or away from a chemical stimulus. In the context of a pollen tube, it can refer to the growth movement towards the chemical signals released by the egg.Therefore, the most appropriate option for the growth movement of a pollen tube towards the egg is 'Chemotropism,' as it involves the growth response towards the chemical signals released by the egg.
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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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