Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.

Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping

translocation of organic materials is best explained by inbibtion theory active transport mass flow hypothesis

translocation of organic materials is best explained by
  1. inbibtion theory
  2. active transport
  3. mass flow hypothesis

Grade:12th pass

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
6 years ago
ThePressure Flow Hypothesis, also known as theMass Flow Hypothesis, is the best-supported theory to explain the movement of food through thephloem i.e. translocation.It was proposed byErnst Munch, aGermanplant physiologistin 1930.A high concentration of organic substance insidecellsof the phloem at a source, such as aleaf, creates a diffusion gradient(osmotic gradient) that draws water into the cells. Movement occurs by bulk flow (mass flow); phloem sap moves fromsugar sources tosugar sinksby means of turgorpressure, also known as hydrostatic pressure. A sugar source is any part of the plant that is producing or releasing sugar. During the plant's growth period, usually during the spring, storage organs such as therootsare sugar sources, and the plant's many growing areas are sugar sinks. The movement in phloem is bidirectional, whereas, in xylem cells, it is unidirectional (upward).

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy


Get your questions answered by the expert for free