Question

How is food transported in plants using phloem ???

Answer 1

Food synthesized in the form of sucrose, amino acids is transported by translocation in the phloem. the food enters the sieve elements and can flow bidirectional. One of the major hypothesis of phloem transport is pressure theory according to which water containing food molecules flows under pressure from low to high pressure. This pressure is created by transpiration pull or by turgor pressure that builds between source and sinks. Both forms pressure which leads to transport along the gradient by osmosis.