Water potential is not
1. Denoted by Greek symbol psi
2. Expressed in pressure units such as Pascals (Pa)
3. At standard temperature not under any pressure, is taken zero
4. Always negative or zero
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFind the correct one.
1. All the solutions have lower water potential than pure water given that solution is under external pressure.
2. All the solutions have lower water potential than pure water.
3. All the solutions have higher water potential than pure water.
4. All the solutions have lower water potential than pure water unless the solution is under such external pressure which is more than the solute potential.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySolute potential is
1. More when solute is more
2. Less when solute is less
3. Always negative
4. All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor a solution at atmospheric pressure
1. Solute potential is more than water potential
2. Water potential more than solute potential
3. Solute potential is less than water potential
4. Water potential is equal to solute potential
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPlants have
1. Positive water potential when cells get turgor pressure
2. Negative water potential when water is transported up a stem
3. Negative pressure is developed in the cell due to turgor pressure
4. Both 1 and 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCell wall is
1. Freelly permeable
2. Impermeable
3. Semipermeable
4. Selectively permeable
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn plant cell, which of the following is important determinants of movement of molecules in or out of the cell?
1. Cell wall
2. Cell membrane
3. Tonoplast
4. Both 2 and 3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOsmosis
1. Diffusion of water across a differentially permeable membrane
2. Diffusion of water across a semipermeable membrane
3. Diffusion of water across a freely permeable membrane
4. Both 1 and 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe net direction and rate of osmosis depends upon
1. Pressure gradient
2. Concentration gradient
3. Chemical potential
4. All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyApply concept of water potential and osmosis
Solution of which chamber has a lower solute potential?
(1) Chamber A
(2) Chamber B
(3) Both will have equal values
(4) Cannot be predicted
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology