Biology – Cell Membrane Webquest

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CELL MEMBRANE WEBQUEST

structure and function
Go to bit/cellmembrane 1120

Pa – Click “build a membrane”rt 1 : Build a Membrane

  • Follow along the prompts and answer the following questions as you go along
  1. Label the phospholipid below:
  1. What is the role of cholesterol?

  2. What does it mean that the cell membrane is “semi-permeable”?

  3. Why is it important that the cell is semi-permeable?

  4. What molecules did you notice were able to move through the membrane?

    • WHY WERE THESE ABLE TO MOVE THROUGH THE MEMBRANE?
  5. Why were the following molecules not able to move through the membrane?

    • Sugar:- (+) or (-) Ions:
  6. What is the role of a channel protein?

  7. Ions only move across the membrane until there are ________ amounts on both sides of themembrane. This is because ions move from an area of ______ concentration to an area of ______ concentration.

  8. Define DIFFUSION:

  9. Define FASCILITATED DIFFUSION:

  10. Define ACTIVE TRANSPORT:

  11. Which type of transport requires energy?

  12. What is the role of a carrier protein?

  13. In the membrane, ________________ act as identification badges. Cells have different membrane carbohydrates if they do different ______.

Part 2 : Membrane Structure Challenge

  • Click “membrane structure challenge”- Follow along the prompts to see how to move smaller non-charged molecules across the membrane

Pa – Click “membrane structure challenge”rt 3 : Diffusion Challenge

  • Follow along the prompts
  1. What is equilibrium?

  2. Draw an arrow on the diagram to theright for which direction O move. 2 would

  3. Why would oxygen move in thatdirection?

Part 4 : Energy and Transport

  • Click “energy and transport challenge”- Follow along the prompts to see how to move larger molecules across the cell membrane with and without energy
  1. Why is sugar important for the cell?
  2. What is your GOAL for this challenge?
  3. What was the first step you took to move sugar across the membrane?
  4. What was your 2nd step?
  5. How much APT did you use to get all 10 sugar molecules across the membrane?
  6. The movement of molecules from HIGH to LOW concentration (WITH THE CONCENTRATION GRADIENT) is considered ______________________ and the movement of molecules from LOW toHIGH concentration (AGAINST THE CONCENTRATION GRADIENT) is considered __________________.

Part 5 : Osmosis Challenge

  • Click “osmosis challenge”
  • Follow along the prompts to see how the diffusion of water works
  1. Define OSMOSIS:
  2. In osmosis, we talk about the ___________ concentration rather than the ____________ concentration. Solutes are the substances that are _______________ in water.
  3. Define the following:- hypertonic:
    • hypotonic:
    • isotonic:

CELL MEMBRANE WEBQUEST

structure and function
Go to bit/cellmembrane 1120

Pa – Click “build a membrane”rt 1 : Build a Membrane

  • Follow along the prompts and answer the following questions as you go along
  1. Label the phospholipid below:
  1. What is the role of cholesterol?

  2. What does it mean that the cell membrane is “semi-permeable”?

  3. Why is it important that the cell is semi-permeable?

  4. What molecules did you notice were able to move through the membrane?

    • WHY WERE THESE ABLE TO MOVE THROUGH THE MEMBRANE?
  5. Why were the following molecules not able to move through the membrane?

    • Sugar:- (+) or (-) Ions:
  6. What is the role of a channel protein?

  7. Ions only move across the membrane until there are ________ amounts on both sides of themembrane. This is because ions move from an area of ______ concentration to an area of ______ concentration.

  8. Define DIFFUSION: The movement of molecules from high to low concentration

  9. Define FASCILITATED DIFFUSION: The movement of molecules from high to low concentration with th 11. Definee use of ACofT aI cVhEa nTnRelA NpSroPtOeiRnT: The movement of molecules from low to high concentration with the use of carrier proteins and energy in the form of ATP

  10. Which type of transport requires energy?

  11. What is the role of a carrier protein?

  12. In the membrane, ________________ act as identification badges. Cells have different membranecarbohydrates if they do different ______.

hydrophobic

hydrophilic

O 2 and CO 2

These molecules are small and non-polar.

Cholesterol’s role is to stabilize the cell membrane.

That is only allows some substances to pass through easily.

This allows the cell to regulate what enters and leaves the cell so it can maintain homeostasis.

This molecule is large and polar. These molecules are charged and cannot pass through. Channel proteins allow negative ions through the cell mem eqbruanale. high low

Active transport requires energy.

Carrier proteins are used to pump positive ions AGAINST the concentration gradient using energy. carbohydrates jobs

answer key

Part 2 : Membrane Structure Challenge

  • Click “membrane structure challenge”- Follow along the prompts to see how to move smaller non-charged molecules across the membrane

Pa – Click “membrane structure challenge”rt 3 : Diffusion Challenge

  • Follow along the prompts
  1. What is equilibrium?

  2. Draw an arrow on the diagram to theright for which direction O move. 2 would

  3. Why would oxygen move in thatdirection?

Part 4 : Energy and Transport

  • Click “energy and transport challenge”- Follow along the prompts to see how to move larger molecules across the cell membrane with and without energy
  1. Why is sugar important for the cell?
  2. What is your GOAL for this challenge?
  3. What was the first step you took to move sugar across the membrane?
  4. What was your 2nd step?
  5. How much APT did you use to get all 10 sugar molecules across the membrane?
  6. The movement of molecules from HIGH to LOW concentration (WITH THE CONCENTRATION GRADIENT) is considered ______________________ and the movement of molecules from LOW toHIGH concentration (AGAINST THE CONCENTRATION GRADIENT) is considered __________________.

Part 5 : Osmosis Challenge

  • Click “osmosis challenge”
  • Follow along the prompts to see how the diffusion of water works
  1. Define concen tOSraMtioOSn ItoS : aThn aer emova ofe melownetr ofwa watert ecor nceacrnotsrsa tai omen. mbrane from an area of higher water
  2. In osmosis, we talk about the ___________ concentration rather than the ____________ concentration. Solutes are the substances that are _______________ in water.
  3. Define the following:- hypertonic: higher in solute concentration
    • hypotonic: lower in solute concentration
    • isotonic: equal in solute concentration

When the molecules are equally di mestmbriburtaende .on both sides of the

Oxygen would move from an area of high concentration to low concentration.

Sugar is used to make ATP (energy) and without it, the cell would die. Get all 10 sugar molecules across the membrane using the least amount of energy possible. answers may vary SHOULD BE – Added channel proteins for facilitated diffusion of sugar. answers may vary SHOULD BE – Added carrier proteins for the rest of the sugar – active transport. answers may vary SHOULD BE – 5 would be the least amount. [facilitated] diffusion active transport

solute water dissolved

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Biology – Cell Membrane Webquest

You are watching: CELL MEMBRANE WEBQUEST structure and function Go to. Info created by GBee English Center selection and synthesis along with other related topics.