Question

concentration gradient
c. the difference in
concentration between
2 places
3 factors that affect the rate of diffusion
diffusion
out of the two, in which case will the diffusion
happen faster?
second diagram
first diagram
rewatch

Explanation:

To determine in which diagram diffusion happens faster, we analyze the concentration gradient (difference in concentration between the two sides of the membrane) for each diagram:

Step 1: Analyze Concentration in Each Diagram

• First Diagram: Count the yellow dots (representing solute particles) on the top and bottom. Top: 5, Bottom: 4. Concentration difference = \( |5 - 4| = 1 \).
• Second Diagram: Top: ~10, Bottom: 1. Concentration difference = \( |10 - 1| = 9 \).

Step 2: Relate Concentration Gradient to Diffusion Rate

Diffusion rate is directly proportional to the concentration gradient (the steeper the gradient, the faster diffusion occurs). The second diagram has a much larger concentration difference (steeper gradient) than the first.

1. Count Particles: Determine solute concentration (dots) on both sides of the membrane for each diagram.
2. Calculate Gradient: Find the difference in concentration between top and bottom.
3. Compare Rates: A larger concentration gradient (bigger difference) means faster diffusion. The second diagram has a steeper gradient, so diffusion happens faster there.

Answer:

Second Diagram