AP BIOLOGY

Detailed explanation-1: -While diffusion will go forward in the presence of a concentration gradient of a substance, several factors affect the rate of diffusion: Extent of the concentration gradient: The greater the difference in concentration, the more rapid the diffusion.

Detailed explanation-2: -The rate of diffusion is directly proportional to the concentration gradient. Higher the concentration gradient, the faster the rate of diffusion.

Detailed explanation-3: -The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse. The direction of diffusion is said to be ‘down’ or ‘with’ the concentration gradient. Diffusion stops when the concentration of the substance is equal in both areas.

Detailed explanation-4: -Osmosis And Diffusion Definitions Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.

Detailed explanation-5: -Answer and Explanation: The statement about diffusion that is false is 1) Simple diffusion depends upon specific carrier proteins. Diffusion is a passive process that doesn’t require carrier proteins, but relies on a difference in concentration.