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The Cell Membrane
A cell’s plasma membrane defines the boundary of the cell and determines the nature of its contact with the environment.
1. The Cell Membrane
The Cell Membrane
2. The Cell Membrane (2)
The Cell Membrane (2)
3. The Cell Membrane (3)
The Cell Membrane (3)
4. The Cell Membrane (4)
The Cell Membrane (4)
5. The Cell Membrane (5)
The Cell Membrane (5)
6. Key terms check
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a process by which material moves down a concentration gradient (from high to low concentration) using integral membrane proteins
7. Key terms check
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(plural: flagella) the long, hair-like structure that extends from the plasma membrane and is used to move the cell
8. Key terms check
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a model of the structure of the plasma membrane as a mosaic of components, including phospholipids, cholesterol, proteins, and glycolipids, resulting in a fluid rather than static character
9. Key terms check
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a channel between two adjacent animal cells that allows ions, nutrients, and other low-molecular weight substances to pass between the cells, enabling the cells to communicate
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