How is the sugar moved into the companion cells and phloem sieve tube cells?

How is the sugar moved into the companion cells and phloem sieve tube cells?
  1. By photosynthesis
  2. By active transport
  3. By pressure flow hypothesis
  4. By hypertonic condition

Solution

The sugar is then moved in the form of sucrose into the companion cells and then into the living phloem sieve tube cells by active transport.

Asked in: NCERT

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