Biology (Raven), 10th Edition

Chapter 37: Transport in Plants

Pre-Test

1
What process or force drives water into individual plant cells when the solute concentration inside the cell is greater than the solute concentration outside?
A)osmosis.
B)evaporation.
C)root absorption.
D)active transport.
E)Herkimer's forces.
2
What is water potential as applied to a plant cell?
A)combination of turgor pressure and pressure potential
B)difference between pressure potential and osmotic potential
C)sum of pressure potential and solute potential
D)product of pressure potential and osmotic potential
E)difference between pressure potential and solute potential.
3
In the absence of transpiration, which force or process moves water into the plant and up the xylem columns?
A)root pressure
B)turgor pressure
C)evaporation
D)high soil mineral concentration
E)guttation
4
Through what process can high root pressure cause water in its liquid phase to be lost by leaves?
A)respiration
B)regurgitation
C)transpiration
D)guttation
E)translocation
5
Why do guard cells bulge into an arch with increased turgor pressure?
A)unequal cell-wall thickenings
B)wilting of adjacent epidermal cells
C)contractions of the cytoskeleton
D)swelling of chloroplasts
E)accumulation of starch grains
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