a. The net movement of solute against its concentration gradient with an expenditure of energy.
b. The net movement of solute is down its concentration gradient.
c. All of these choices.
d. The net movement of solute is down its concentration gradient without an energy expenditure.
2006-06-27 16:00:17 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Biology
A. Yes, the use of ATP against the gradient is active
B. This is diffusion or osmosis
C. Nope
D. This is passive transport
2006-06-28 01:01:16 · answer #1 · answered by Emerson 5 · 1⤊ 0⤋
A. Active transport is against the concentration gradient and requires energy.
Dr Pratt.
2006-06-29 03:20:05 · answer #2 · answered by Mujaahid 3 · 0⤊ 0⤋
Active transport moves against the gradient and costs energy.
2006-06-27 23:03:16 · answer #3 · answered by crystalrabbit7 2 · 0⤊ 0⤋
Active transport, unlike passive transport processes such as osmosis and diffusion, requires energy to proceed. The best answer is thus A.
More about active transport:
http://en.wikipedia.org/wiki/Active_transport
2006-06-27 23:03:36 · answer #4 · answered by purplekitten 5 · 0⤊ 0⤋
Active means energy spent
2006-06-27 23:04:02 · answer #5 · answered by Mr. B 3 · 0⤊ 0⤋
A Don''t know but it sounds logical
2006-06-27 23:04:12 · answer #6 · answered by just curious 2 · 0⤊ 0⤋
a.
2006-06-28 00:07:27 · answer #7 · answered by casparin0324 6 · 0⤊ 0⤋