Consider the following statements:
I. | Pure water is usually defined as having a solute potential (Ψπ)of zero. |
II. | A solution will have a lower and hence more negative water potential than that of pure water. |
III. | The more solute molecules present, the more negative the solute potential is. |
Correct statements are:
1. I and II
2. I and III
3. II and III
4. I, II and III
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Give = 0.25 MPa and = -0.50 MPa,what will be the resulting Ψ:
1. +0.75 MPa.
2. -0.75 MPa.
3. -0.25 MPa.
4. +0.25 MP
The direction of water movement in plants can always be predicted by measuring:
1. pressure potential
2. number of aquaporins
3. proton gradients
4. water potential (ψ)
Study the given figure where five beakers filled with a solution have a bag with solution of certain molarity suspended in each of them. The bags are made up of semi-permeable membranes.
What would be the correct order of the beakers in order of the mass of bags after 30 minutes have been allowed to run the experiment [bag with smallest mass to be placed first]?
1. 1, 2, 3, 4, 5
2. 1, 5, 2, 3, 4
3. 4, 3, 2, 5, 1
4. 2, 1, 5, 3, 4
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