Why is the transport of organic food through | vedclass

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(C) Long-distance transport of substances takes place through a bulk flow system. Organic nutrients are transported over long distances by phloem tiss

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The relationship between the two regions (source and sink) is variable and is dependent on season and plant needs

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(C) Long-distance transport of substances takes place through a bulk flow system. Organic nutrients are transported over long distances by phloem tissue from the source to the sink region. The direction of transport of these organic nutrients can be upward or downward,i.e.,bidirectional. This is because the relationship between the synthesis region (source) and the utilization region (sink) is not fixed; it varies depending on the season and the specific physiological needs of the plant.

Why is the transport of organic food through phloem bidirectional?

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