Question

Which is the most accepted mechanism for the translocation of sugars from source to sink?

• A. Pressure flow hypothesis
• B. Cohesion-tension theory
• C. Root pressure theory
• D. Imbibition

Answer 1

Answer:

A. Pressure flow hypothesis

• Pressure flow hypothesis is the most accepted mechanism for the translocation of sugars from source to sink.

• Cohesion-tension theory explains the process of transpiration.

• Root pressure theory demonstrates the movement of xylem sap.

• Imbibition is the reason behind emergence of seedlings out of the soil.