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प्रश्न
How does the population effect of calcium contribute to pollen tube growth?
पर्याय
It promotes population-level effects on tube elongation through cellular signalling
It prevents pollen grains from clumping together
It increases the number of pollen tubes that germinate on the stigma
It dissolves the pollen coat structure
MCQ
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उत्तर
Calcium is found in small amounts in pollen and promotes what is termed the 'population effect' on pollen tube growth. This refers to how calcium facilitates inter-cellular signalling and coordination among pollen tubes, enhancing growth efficiency when multiple pollen tubes are present. Calcium is essential for proper tube elongation and development.
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