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How are passive transport and active transport similar and how are they different?

Questions on Diffusion, Passive Transport and Active Transport?

  • I can find this stuff in my book can someone please help, i am having trouble understanding it. For each of the following molecules, write D if it is moved across cell membranes by simple diffusion, P if it is moved by passive transport ( such as facilitated diffusion), and A if it requires active transport. 1. amino acids 2. Na+ 3. CO2 4. K+ 5. cholesterol 6. glucose 7. H2O 8. C1- 9. estrogen or testosterone

  • Answer:

    Since human hormones estrogen, testosterone and cholesterol are on the list I think you should resubmit this to medicine. As a plant physiologist I can guess, but I might guess wrong for human cells.

Krystal at Yahoo! Answers Visit the source

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