Question

What is mass flow?

Answer 1

Mass flow:

1. Mass flow is the transportation of substances in bulk from the source to the sink.
2. It is also known as bulk flow.
3. The movement of substances occurs due to the pressure differences or water potential differences.
4. A common example of mass flow in plants is the movement of sap by the phloem from the source (leaves) to the sink (roots).
5. The mass flow of substances occurs by the active diffusion with the expenditure of energy.