How does water potential affect osmosis?

Answer 1

The water potential gradient determines the direction of osmosis. It goes from high to low water potential.

This is because n a high water potential area there is a bigger number of free water molecules. Free here means they are not attached to other solute molecules forming a hydration shell.

This video discusses the changes which occur in plant cells when they are placed into hypertonic and hypotonic solutions.

Hope this helps!

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Answer 2

Daniel Allen

Water potential influences the direction and rate of osmosis. Water moves from areas of higher water potential to lower water potential, affecting the movement of water across a semi-permeable membrane during osmosis.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.