cell membrane (B2)

noun

Pronunciation: /sɛl ˈmɛm.breɪn/

Definition

The thin, flexible outer layer that encloses the cytoplasm of a cell and controls the movement of substances in and out.

Examples

• The cell membrane acts as a selective gatekeeper, deciding which nutrients can enter the cell.

• Damage to the cell membrane can lead to the loss of vital internal components.

• Scientists study how proteins embedded in the cell membrane facilitate communication between cells.

How to Use cell membrane

across the cell membrane (prepositional phrase)

movement from one side to the other — "Water moves across the cell membrane through specialized channels."

embedded in the cell membrane (prepositional phrase)

located within the structure of the membrane — "Many receptors are embedded in the cell membrane to detect signals."

Synonyms of cell membrane

Words with a similar meaning to cell membrane:

• plasma membrane
• cytoplasmic membrane
• lipid bilayer

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