Cell Membrane Notes

• Biology
• 11th Grade

What does it mean to have a phobia?

1. To really like something
2. To be afraid of something
3. To want something
4. To be really great at something

Interactive Manipulatives

WITH YOUR SHOULDER PARTNER

Take 10 Qtips and lay them out on your piece of construction paper like a cell membrane.

Label the hydrophilic heads and the hydrophobic tails.

Interactive Manipulatives

WITH YOUR SHOULDER PARTNER

Take one piece of pasta and lay it in between your second and third Q-tip. Then take a second piece of pasta and lay it in between your sixth and seventh Qtips.  Label these transport protein channels.

Interactive Manipulatives

WITH YOUR SHOULDER PARTNER

Take your pieces of white rice (not rise krispies) and place 10 pieces on top of the Qtip line and 6 pieces below the Qtip line.

Label the top "outside the cell" and the bottom "inside the cell"

If passive transport happened on your paper, which way would the rice move?

1. Outside the cell (Higher concentration)
2. Inside the cell (Lower concentration)

Interactive Manipulatives

Move your grains of rice so there are 8 on either side of the cell membrane line.  

Add 5 pieces of Rice Krispies outside the cell and 7 pieces inside the cell.  Since the Rice Krispies are larger, they can only move through the protein channels.

Active Transport

Passive Transport

Uses energy

Does not use energy

Facilitated diffusion is a type

High concentraiton to low concentration

Low concentration to high concentration

Label on your paper where there is a high concentration and where there is a low concentration. Then take a picture, submit it here, and pour the contents back into the plastic bag. Please recycle your construction paper.