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Rachel is a scientist and is studying the plasma membrane of bacteria. She leaves the bacteria...

Question:

Rachel is a scientist and is studying the plasma membrane of bacteria. She leaves the bacteria growing in a water bath overnight at 23°C but the electricity goes out after she leaves and the temperature drops at 15°C. When she gets back several hours later, what will Rachel expect to see when she analyzes the bacterial membrane?

A. The loss of sterols from the membrane.

B. Higher levels of saturated fats

C. Lower levels of saturated fats

D. Higher levels of saturated fats

Membrane Fluidity:

Plasma membranes are highly fluid. The fluidity of a plasma membrane is necessary to ensure the proper trafficking and movement of substances across the membrane. Organisms have different ways to ensure a continued membrane fluidity such as the integration of different membrane components.

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Why Is the Cell Membrane Important?

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Chapter 7 / Lesson 34
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Cell membranes are semipermeable, pliable structures that encompass the cell. Learn what a semipermeable membrane is, why they are vital to a living cell, and the definition of a pliable cell membrane.


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