y no one anwering my ques

How does active transport differ from passive
transport?
1. Molecules move down a concentration
gradient in active transport.
2. Carrier proteins are used only in active
transport.
3. Energy is required only in active transport.
4. Energy is required only in passive transport

  1. 0
  2. 3
asked by anmol
  1. Unfortunately, Jiskha doesn't have a regular biology tutor.

    posted by Ms. Sue
  2. i believe the answer is #1

    posted by Alison
  3. It is not #1. That is a definition of diffusion.

    posted by drwls
  4. oh my bad. sorry. biology was always tough for me

    posted by Alison
  5. The answer would be 3.

    posted by Devron
  6. 1.D
    2.A
    3.D
    4.B
    5.B
    100% trust me ^~^ ^_^

    posted by Lizzy Wurst
  7. 1. D
    2. A
    3. D
    4. B
    5. B
    100% trust me I just took the test

    posted by Someone
  8. thx ^_^

    posted by sam

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