Translocation of organic materials in plants is explained by:

Who used two bulbs of semipermeable membrane to explain the pressure flow theory?

The part through which sugars flow from one cell to another is called:

Explain: The relationship between source and sink is variable.

Assertion : Long distance flow of photoassimilates in plants occurs through sieve tubes.
Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.

Which ions are concerned with sugar transport?