Translocation of food in plants||New Book biology 9th Chapter 9 Plant physiology
Автор: Smart Bio Simplified: Learn Smart & Score High"
Загружено: 2025-08-19
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Translocation of Food in Plants refers to the movement of organic nutrients—primarily sucrose, along with amino acids, hormones, proteins, and RNA—from source tissues (like mature leaves) to sink regions (such as roots, fruits, seeds, or growing organs) via the phloem. This process works through the pressure flow mechanism: sugars are actively loaded into phloem sieve tubes in source areas, increasing osmotic pressure and drawing in water, creating a turgor pressure that drives sap toward sinks where sugars are unloaded and water exits
. Phloem consists of living cells—including sieve tube elements (lacking nuclei),companion cells, and supporting parenchyma—and allows multidirectional transport, unlike the unidirectional flow in xylem
pressure flow mechanism in phloem” – Specific process term, fewer broad searches
“phloem translocation source sink” –
“sieve tube loading unloading”
“translocation plant physiology”
“translocation of sugars in plants” –
“companion cells phloem loading” –
“multidirectional flow in phloem” –
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