Question

Mass flow hypothesis was put forward by

• A. Swanson
• B. Munch
• C. Curtis
• D. De Vries.

Answer 1

The correct option is B Munch

Mass flow hypothesis is also known as pressure flow hypothesis it is the best-supported theory to explain the movement of sap through the phloem. It was discovered by the scientist by Ernst Munch in 1930, He was the German plant physiologist. This creates the hydrostatic pressure in the phloem of the plant.

So, the correct option is B.