Translocation may be affected by

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(D) Translocation refers to the movement of organic solutes (primarily sucrose) from the source (leaves) to the sink (roots,fruits,or growing regions)

Vedclass · Accepted Answer

All the above

Vedclass · Answer

(D) Translocation refers to the movement of organic solutes (primarily sucrose) from the source (leaves) to the sink (roots,fruits,or growing regions) through the phloem. $(1)$ Light: It influences the rate of photosynthesis,which determines the amount of sucrose produced at the source. $(2)$ Oxygen: Phloem loading and unloading are active processes that require $ATP$. Oxygen is essential for cellular respiration to produce $ATP$. $(3)$ Metabolic control: The metabolic activity of the source and sink cells regulates the pressure gradient required for the mass flow of sap. Since all these factors influence the process,the correct answer is $D$.

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