Question

HELP! NEED ANSWER NOW :) GIVING OUT MEDALS.


The picture shows the active transport of ions by the sodium-potassium pump.

How is diffusion different from this process?
A)Diffusion takes place due to osmotic pressure.
B)Diffusion requires cellular energy for the transfer of molecules.
C)Diffusion requires protein channels as a passage-way for particles.
D)Diffusion transfers particles from an area of high to low concentration

Answer 1

well basically diffusion is where you spread something over a vast area

Answer 2

"Simple diffusion does not require energy: facilitated diffusion requires a source of ATP."

Answer 3

by definition, osmotic pressure is "the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution."

Answer 4

as for option B, diffusion in general does not require any cellular energy

Answer 5

Option D refers to Fick's first law. This relates the "diffusive flux to the concentration under the assumption of steady state. It postulates that the flux goes from regions of high concentration to regions of low concentration, with a magnitude that is proportional to the concentration gradient (spatial derivative), or in simplistic terms the concept that a solute will move from a region of high concentration to a region of low concentration across a concentration gradient."

Answer 6

so the answer is? @PRAETORIAN.10

Answer 7

I'm thinking the answer is C.

Answer 8

It's C (: