Homework Help: y no one anwering my ques

Posted by anmol on Sunday, February 19, 2012 at 9:48pm.

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

y no one anwering my ques - Ms. Sue, Sunday, February 19, 2012 at 9:52pm
Unfortunately, Jiskha doesn't have a regular biology tutor.
y no one anwering my ques - Alison, Sunday, February 19, 2012 at 9:58pm
i believe the answer is #1
y no one anwering my ques - drwls, Sunday, February 19, 2012 at 10:05pm
It is not #1. That is a definition of diffusion.
y no one anwering my ques - Alison, Sunday, February 19, 2012 at 10:51pm
oh my bad. sorry. biology was always tough for me
y no one anwering my ques - Devron, Sunday, February 10, 2013 at 12:50am
The answer would be 3.

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