Which of the Following Observations Made with Freeze- Fracture Electron

question 50

Multiple Choice

Which of the following observations made with freeze- fracture electron microscopy provides evidence for the fluid- mosaic model of membrane structure?

• A) The middle of the membrane viewed under the electron microscope was smooth and regular.
• B) The exterior surface of the membrane contained pits only.
• C) The inner surfaces of the membrane contained pits and mounds.
• D) The exterior surface of the membrane contained pits and mounds.

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