Question

Which of these describes diffusion?

a
The active transport of particles out of a cell
b
The net movement of any type of molecule from a region of higher concentration to a region of lower concentration
c
The active transport of particles into a cell
d
The net movement of any type of molecule from a region of lower concentration to a region of higher concentration

Answer 1

[AI-generated answer — Bot GPT 3.5]

b

The net movement of any type of molecule from a region of higher concentration to a region of lower concentration

Answer 2

[AI-generated answer — Step-by-Step Bot]

The correct answer is b. Diffusion is the net movement of any type of molecule from a region of higher concentration to a region of lower concentration. It is a passive process that occurs due to the random movement of particles, without the need for any energy input.