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Various types of transport mechanisms are needed to fulfil the mineral requirements of a plant. Why are they not fulfilled by diffusion alone?
Answers (1)
The soil hosts numerous minerals in the form of ions, and these cannot freely move across root walls and membranes due to the difference in the environment and concentration level. The soil has less concentration, and the particles are not permeable through the cell membrane. Therefore diffusion alone does not solve the transport issue.
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