which one is an example of active transport?

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which one is an example of active transport?

a. equilibrium
b.sodium pottasium pump
c. facilitated diffusion
d. osmosis.

2007-09-18 12:09:53 · 3 answers · asked by Mr. Arkansas 3 in Science & Mathematics ➔ Biology

3 answers

B requires energy (think "pump" which is a good indicator that it's not going to happen without something making it happen).

The other choices are all passive.

2007-09-18 12:17:24 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋

2007-09-18 19:27:30 · answer #2 · answered by Manjinder N 3 · 0⤊ 0⤋

B (god im studying this crap i hate science)

2007-09-19 17:08:51 · answer #3 · answered by Anonymous · 0⤊ 0⤋