Cell Membrane

Cell Membrane

At a glance


Essential skills

  • For bacteria, connect the cell membrane to staining and antibiotic susceptibility.

  • For eukaryotes, connect the cell membrane to the cell’s endomembrane system and transport system.


Knowledge Fundamentals

  • Bacterial membrane vs. eukaryotic membrane

  • The peptidoglycan layer in bacteria

  • Components of the fluid mosaic model

  • Protein receptors

  • Protein transports

  • Endocytosis vs. exocytosis


On the MCAT

  • The test loves to test major differences between eukaryotes and bacteria, down to the differing components of our membrane.

  • Students often confuse passive vs. active transport, primary vs. secondary active transport.


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