1.3 - Membrane structure
Assessment statements
| DCS Topic Code | Statement | Guidance |
| 1.3.U1 | Phospholipids form bilayers in water due to the amphipathic properties of phospholipid molecules. | Amphipathic phospholipids have hydrophilic and hydrophobic properties. |
| 1.3.U2 | Membrane proteins are diverse in terms of structure, position in the membrane and function. | |
| 1.3.U3 | Cholesterol is a component of animal cell membranes. | |
| 1.3.A1 | Cholesterol in mammalian membranes reduces membrane fluidity and permeability to some solutes. | |
| 1.3.S1 | Drawing of the fluid mosaic model. | Drawings of the fluid mosaic model of membrane structure can be two dimensional rather than three dimensional. Individual phospholipid molecules should be shown using the symbol of a circle with two parallel lines attached. A range of membrane proteins should be shown including glycoproteins. |
| 1.3.S2 | Analysis of evidence from electron microscopy that led to the proposal of the Davson-Danielli model. | |
| 1.3.S3 | Analysis of the falsification of the Davson-Danielli model that led to the Singer-Nicolson model. |
Lesson 1
- Notes
- Cell membrane practice
- Cell membrane review
- Chalk drawings
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Review Lecture
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