Water movement is observed
1. From high water potential to lower water potential
2. From low solute potential to high solute potential
3. From low pressure potential to high pressure potential
4. From high solute concentration to low solute concentration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWater moves
1. Down a gradient of solutes
2. Down a gradient of free energy
3. Above a gradient of water
4. Above a gradient of pressure
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWater 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 & Biology