Widely accepted theory that explains transport of organic solutes in plants is supported by:
Correct answer: A. Pressure flow theory
- A. Pressure flow theory
- B. Diffusion
- C. Imbition
- D. Ascent of sap
Explanation
The widely accepted theory that explains the transport of organic solutes in plants is the Pressure Flow Theory, also known as the Mass Flow Hypothesis. This theory describes how sugars (mainly sucrose) are transported from source tissues (where they are produced, usually leaves) to sink tissues (where they are utilized or stored, such as roots, fruits, or storage organs) through the phloem.
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About Forms and Functions of Plants
Plant nutrition and transport cover mineral uptake, photosynthesis, xylem movement of water and minerals, and phloem translocation of sugars. Plant growth regulators include auxins, gibberellins, cytokinins, abscisic acid and ethene, whose effects on cell division, elongation, dormancy, fruit ripening and tropic responses should not be confused with mineral nutrition.
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