List 4 functions of the cell or plasma membrane: 1. 2. 3. 4. Correctly color code and identify the name for each part of the cell membrane. Name/Color Phospholipid bilayer (no color) Name/Color Cholesterol (green) Letter Letter Transport protein (pink) Carbohydrate (red) Fatty acid tails (orange) Phosphate heads (yellow) 王 Match the cell membrane structure or its function with the correct letter from the cell membrane diagram. Letter Structure/Function Letter Structure/Function Attracts water Repels water Helps maintain flexibility of Make up the bilayer membrane Involved in cell-to-cell Help transport certain materials recognition across the cell membrane

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A:

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A:

Q: Below is the skeletal formula of a molecule typically found in cell membranes. What type of molecule…

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Q: Describe ONE modification that could happen to the phospholipids in a membrane that would increase…

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Q: Why water cannot readily cross the plasma membrane?

A: Plasma membrane show fluid properties, i.e. Can show motion.

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.