Question

Diffusion can be defined as ---.

Question 7 options:


Movement through a cell membrane by active transport using energy from ATP


Movement of particles from a region of high concentration to a region of low concentration


Movement of particles from a region of low concentration to a region of high concentration


The movement of particles up/against their natural concentration gradient.

Answer 1

Movement of particles from a region of high concentration to a region of low concentration

Step-by-step explanation:

• Diffusion can be defined as the movement of particles from a region of high concentration to a region of low concentration.
• Diffusion is a special type of diffusion that involves movement of solute molecules from a region of a high concentration to a region of high concentration until equilibrium is achieved.
• Diffusion is a passive transport of particles, which means it does not involve use of energy in the form of ATP like the case of active transport.