Question

question #5
what does the text say about how osmosis works?
a. its like a crowd of people moving from a crowded room to a less crowded one.
b. its like water flowing from a full glass to an empty one.
c. its like a person needing a lift to get over a wall.
d. its like rolling a ball down a hill.
question #6
what is the main difference between diffusion and facilitated diffusion?
a. diffusion uses energy, while facilitated diffusion doesnt.
b. facilitated diffusion uses proteins, while diffusion doesnt.
c. diffusion moves water, while facilitated diffusion moves other molecules.
d. diffusion moves things f low to high concentration, while facilitated diffusion moves things from high to concentration.

Explanation:

• For Question #5: Osmosis is the movement of water across a semi - permeable membrane from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration). Option B is a good analogy as water (like in osmosis) moves from an area where it is more abundant (full glass) to an area where it is less abundant (empty glass).
• For Question #6: Diffusion is the movement of molecules (other than water) from an area of high concentration to an area of low concentration. Facilitated diffusion is a type of diffusion where molecules (usually larger or polar) pass through the cell membrane with the help of transport proteins. Option B correctly states that facilitated diffusion uses proteins while simple diffusion does not.

Answer:

Question #5: B. It's like water flowing from a full glass to an empty one.
Question #6: B. Facilitated diffusion uses proteins, while diffusion doesn't.