Which of the Following Mechanisms Best Explains How Xylem Sap

question 2

Multiple Choice

Which of the following mechanisms best explains how xylem sap moves up against the downward pull of gravity?

• A) transpiration-cohesion-tension mechanism
• B) adhesion-tension-diffusion of oxygen
• C) reverse osmosis-adhesion-transpiration
• D) glucose pumping-adhesion-tension mechanism

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