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vr vr
wrote...
Posts: 510
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6 years ago
Movement of a molecule against a concentration
  gradient is
  a. simple diffusion.
  b. facilitated diffusion.
  c. osmosis.
  d. active transport.
  e. bulk flow.

Question 2

The net direction that an ion or molecule moves is
  a. dependent upon the size of the molecule.
  b. unpredictable because movement is random.
  c. determined by the temperature of the medium.
  d. determined by the membranes in the vicinity.
  e. the result of concentration differences.
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Replies
wrote...
6 years ago
Answer to q. 1

Answer: d

Answer to q. 2

Answer: e
vr Author
wrote...
6 years ago
Thank you, thank you, thank you!
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