The improvements so proposed in pressure flow | vedclass

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(D) The pressure flow hypothesis,also known as the Munch hypothesis,explains the translocation of sugars from source to sink in plants. It suggests th

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All the above

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(D) The pressure flow hypothesis,also known as the Munch hypothesis,explains the translocation of sugars from source to sink in plants. It suggests that the movement of phloem sap occurs due to a pressure gradient. This mechanism is often described as a $Volume$ $flow$ or $Solution$ $flow$ because the entire sap (containing water and dissolved solutes like sucrose) moves together as a bulk flow. Since this process is driven by osmotic pressure gradients created by active loading and unloading of sugars,it is also referred to as an $Active$ $solution$ $flow$. Therefore,all these terms are used to describe the improvements or characteristics proposed in the pressure flow mechanism.

The improvements so proposed in pressure flow are

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