Science

Alright i forgot my science book and theres a paper due soon so i was wondering if i could get some answers to these questions.



List Three Ways That Substances can move in and out of a cell.



In diffusion, molecules move from an area of _________ concentration to an area of _________ concentration.



Two ways of moving things into and out of cells that do NOT need energy are ______________ AND ____________ .



How does active transport differ from passive transport?



List Two ways the cell moves things by active transport.

Plz help!! Thanks

asked by blah
  1. Diffusion moves molecules from greater concentration to lesser concentration.

    However, since this is not my area of expertise, I searched Google under the key words "cells active passive transport" to get these possible sources:

    (Broken Link Removed)
    http://library.thinkquest.org/C004535/molecule_transport.html
    http://www.biology4kids.com/files/cell2_passivetran.html
    http://www.accessexcellence.org/RC/VL/GG/ecb/comparison_active_passive_transport.html
    http://www.biologie.uni-hamburg.de/b-online/e22/22.htm

    In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

    I hope this helps. Thanks for asking.

    posted by PsyDAG

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