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studyperfect studyperfect
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6 years ago
Using severed aphid mouthparts, scientists have verified that in most species the phloem translocates
  mostly __________, but that __________ may also be translocated.
  a. glucose; amino acids
  b. glucose; sugar alcohols
  c. glucose; cellulose and starch
  d. sucrose; raffinose and sorbitol
  e. sucrose; glucose

Question 2

According to the pressure-flow hypothesis:a.
   water moves from an area of positive water potential to an area of negative water
  potential.
  b. the evaporative pull of transpiration produces tension at the top of the plant.
  c. the flow of sugar is driven by a hydrostatic pressure gradient produced by water entering
  the phloem.
  d. pressure is created by the movement of water into the roots from the soil.
  e. the column of water pulled up through the plant is unbroken due to cohesive and adhesive
  properties.
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fayez_83fayez_83
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studyperfect Author
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6 years ago
Good timing, thanks!
gma_of_7
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Yesterday
Thanks
Lawson1981
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2 hours ago
Thanks
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