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palantriel palantriel
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Posts: 464
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6 years ago
Active transport in plant root cells requires that those cells have access to O2. Normally there is enough
  O2 available in air pockets in the soil, but flooded soil has very little O2. Thus, unless they have special
  adaptations, plants in flooded soil effectively have no active transport in their roots. Which of the
  following should you expect to occur for trees without special adaptations to flooding after several
  days in flooded soil?
 
  a. excess uptake of water and minerals in the xylem
  b. wilting of their leaves
  c. bursting of leaf cells due to excess water flow
  d. excess water pushed out at the margins of their leaves
  e. excess uptake of water and minerals in the xylem, and excess water pushed out at the
  margins of their leaves

Question 2

Most mineral ions that plants need are
 
  a. moved into the symplast via active transport.
  b. moved into the transmembrane pathway via bulk flow.
  c. moved into the apoplast via facilitated diffusion.
  d. moved into the symplast via facilitated diffusion.
  e. moved into the apoplast via bulk flow.
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2 Replies

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Replies
wrote...
6 years ago
Answer to q. 1

B

Answer to q. 2

A
palantriel Author
wrote...
6 years ago
I'm seriously surprised that you found the answers... What's your secret?!
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