A mature corn plant absorbs…….. of water in a day while a mustard plant absorbs water equal to its own weight in about…….. 

  1. 5L, 3hours 
  2. 3L, 5 hours 
  3. 5L, 5 hours 
  4. 3L, 3 hours 
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Water is often a major limiting factor in

  1. Photosynthesis
  2. Respiration
  3. Photorespiration
  4. Plant Growth and Productivity
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Which of the following is the two major components of water potential

  1. Solute potential and osmotic pressure
  2. Solute potential and pressure potential
  3. Osmotic pressure and turgor pressure
  4. Osmotic pressure and solute concentration
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Water molecules show a motion

  1. Random
  2. Rapid
  3. Constant
  4. All of these
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The greater water potential actually does not suggest the

  1. Greater concentration of water
  2. Greater Kinetic Energy
  3. Less solute concentration
  4. Lower solute potential
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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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Water 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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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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Solute Potential is the amount where

  1. Dissolution of a solute causes lowering of water potential
  2. Increase of solute causes increase of water potential
  3. Increase of solute causes decrease in osmotic pressure
  4. Increase of solute causes increase in solute potential
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Find the correct one.

  1. All the solutes have lower water potential than pure water given that solution is under external pressure
  2. All the solutions have lower water potential than the pure water
  3. All the solutions have higher water potential than the pure water
  4. All the solutions have lower water potential than pure water unless solution is under such external pressure which is more than the solute potential
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