In the Pressure-Flow Mechanism, Loading of Sucrose from Companion Cells

question 58

Multiple Choice

In the pressure-flow mechanism, loading of sucrose from companion cells to sieve-tube elements takes place through ________.

• A) plasmodesmata
• B) facilitated diffusion
• C) sucrose-H⁺ symporters
• D) sucrose-H⁺ antiporters

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