What drives the bulk flow of phloem sap from source to sink according to pressure-flow hypothesis?

Type: MCQ • Marks: 1

A. Hydrostatic pressure gradient between source and sink

B. Transpiration pull

C. Root suction

D. Capillary action

Explanation

High pressure at source and lower pressure at sink drive mass flow of sap through sieve tubes toward the sink.

Want to attempt the full test series with a timer and instant score? Purchase the package to unlock the complete test. Purchase Now

Class 7th Curiosity

This page is indexed for search so students can find questions directly from Google.

Welcome to TutorWale!