According to the pressure flow theory of phloem transport, the source region is most often the ____.

Question

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The pressure flow theory of phloem transport states that photosynthesis in the leaves produces sugars and other solutes that create a high osmotic pressure in the phloem, resulting in the movement of sap from source regions (such as leaves) to sink regions (such as growing regions). Therefore, the source region is most often the leaf.

According to the Pressure Flow Theory of Phloem Transport, the Source