Question

Describe the Mass Flow Hypothesis for translocation of organic solutes (food) in plants.

Answer 1

Movement of food:

1. Food materials move from the concentration areas to lesser concentrations.
2. There is a turgor pressure gradient in between supplying and receiving tissues.
3. Food is moving from the leaves to the roots.
4. Leaves act as source end.
5. Roots allow food to absorb and act as an end of the drain.

Mass Flow Hypothesis:

1. The pressure-flow hypothesis is also known as the mass flow hypothesis.
2. The theory describes the movement of food materials through the phloem.