to an area of Law of Diffusion: particles move from an area of until - diffusion is a process. The rate of diffusion is affected by the (the difference in concentration of the diffusing molecules between the two regions), the of the molecules, and the Diffusion in liquid is slower than in gas However, distribution of molecules in cytoplasm is speeded up by an ever-constant flow of the cytoplasm that is called cytoplasmic streaming Three Ways of increasing the rate of diffusion: 1. increase the 2. increase the 3. the size of the diffusing molecules The properties of the cell membrane allow few types of molecules to pass by diffusion: -soluble molecules like and can diffuse directly across because the membrane itself is made of

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to an area of Law of Diffusion: particles move from an area of until - diffusion is a process. The rate of diffusion is affected by the (the difference in concentration of the diffusing molecules between the two regions), the of the molecules, and the Diffusion in liquid is slower than in gas However, distribution of molecules in cytoplasm is speeded up by an ever-constant flow of the cytoplasm that is called cytoplasmic streaming Three Ways of increasing the rate of diffusion: 1. increase the 2. increase the 3. the size of the diffusing molecules The properties of the cell membrane allow few types of molecules to pass by diffusion: -soluble molecules like and can diffuse directly across because the membrane itself is made of

Answer 1

Law of Diffusion: particles move from an area of **high concentration** to an area of **low concentration** until **equilibrium is reached**.- Diffusion is a **passive** process. The rate of diffusion is affected by the **concentration gradient** (the difference in concentration of the diffusing molecules between the two regions), the **size** of the molecules, and the **temperature**.Diffusion in liquid is slower than in gas. However, the distribution of molecules in the cytoplasm is speeded up by an ever-constant flow of the cytoplasm that is called cytoplasmic streaming.Three Ways of increasing the rate of diffusion:1. Increase the **temperature**2. Increase the **concentration gradient**3. **Decrease** the size of the diffusing moleculesThe properties of the cell membrane allow few types of molecules to pass by diffusion: **Lipid**-soluble molecules like **oxygen** and **carbon dioxide** can diffuse directly across because the membrane itself is made of **lipids (phospholipids and cholesterol).**

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