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

question 10

Multiple Choice

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

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

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