Which of the following is not significant in osmosis?

Gravitational potential

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Concentration gradient

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Solute potential

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Pressure potential

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Solution

The correct option is B Gravitational potential
Concentration gradient decides the direction in which water flows through osmosis.
Osmosis also depends on water potential which has two key components that are solute potential and pressure potential. Gravitational potential is ignored while calculating water potential. This is because gravitational potential has such a small value that it doesn't have any significant contribution towards osmosis.
So the correct answer is 'Gravitational potential'.

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