AP BIOLOGY

Detailed explanation-1: -Diffusion occurs when gas molecules disperse throughout a container. Effusion occurs when a gas passes through an opening that is smaller than the mean free path of the particles, that is, the average distance traveled between collisions. Effectively, this means that only one particle passes through at a time.

Detailed explanation-2: -Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things-it is how substances move in and out of cells.

Detailed explanation-3: -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.

Detailed explanation-4: -QUESTION: ⏩What is true of diffusion? The correct answer is (4) Molecules move from areas of high concentration to areas of low concentration.