| Front | What are the steps for the mass flow hypothesis |
|---|---|
| Back | 1.Sugar actively transported by companion cells into sieve tubes of phloem 2. Water potential decreased inside sieve tubes so water enters the sieve tubes by osmosis from xylem and companion cells 3. High pressure created inside sieve tubes 4. sugars removed from sieve tubes into companion cells 5. Water potential increased inside sieve tubes so water leaves the sieve tubes by osmosis into xylem. 6. Pressure inside sieve tubes decreased |
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