cell wall: meaning, definition, pronunciation and examples
C1Technical, Academic
Quick answer
What does “cell wall” mean?
The rigid outer layer surrounding the cell membrane of plant cells, fungi, bacteria, and some protists, providing structural support and protection.
Audio
Pronunciation
Definition
Meaning and Definition
The rigid outer layer surrounding the cell membrane of plant cells, fungi, bacteria, and some protists, providing structural support and protection.
In figurative use, can describe any rigid or impenetrable boundary or structure, or a system that restricts movement or thought.
Dialectal Variation
British vs American Usage
Differences
No significant orthographic or semantic differences. The term is identical in both varieties.
Connotations
No variation in connotation. Purely technical.
Frequency
Equally low frequency in both varieties, confined to scientific contexts.
Grammar
How to Use “cell wall” in a Sentence
The cell wall of [organism/plant][Verb: e.g., possess, lack, degrade] a cell wallA cell wall composed of [material]Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Primary domain. Used in biology, botany, microbiology, and biochemistry textbooks and research.
Everyday
Virtually never used in everyday conversation unless discussing gardening or biology at a high level.
Technical
Essential term in life sciences laboratories, describing a key structural component of many cells.
Vocabulary
Synonyms of “cell wall”
Strong
Weak
Vocabulary
Antonyms of “cell wall”
Watch out
Common Mistakes When Using “cell wall”
- Using 'cell wall' to refer to animal cells (which lack them).
- Confusing 'cell wall' with 'cell membrane'.
- Using it as a verb (e.g., 'The plant cell walls itself').
FAQ
Frequently Asked Questions
No. Cell walls are present in plants, fungi, bacteria, and some protists (like algae). Animal cells do not have cell walls; they are surrounded only by a flexible cell membrane.
The primary structural component is cellulose, a complex carbohydrate. Other components include hemicellulose, pectin, and in some cells, lignin.
The cell wall is a rigid, non-living, outer layer made of cellulose (in plants) or other compounds. The cell membrane (or plasma membrane) is a flexible, living, lipid bilayer that controls what enters and exits the cell and is found just inside the cell wall in walled cells.
Yes, though it's rare. It can describe any rigid barrier or system that confines or protects, e.g., 'The bureaucracy acted as a cell wall, preventing new ideas from reaching the management.'
The rigid outer layer surrounding the cell membrane of plant cells, fungi, bacteria, and some protists, providing structural support and protection.
Cell wall is usually technical, academic in register.
Cell wall: in British English it is pronounced /ˌsel ˈwɔːl/, and in American English it is pronounced /ˌsel ˈwɔːl/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a plant cell as a medieval castle. The soft, living contents are the people inside. The **cell wall** is the strong, stone outer wall protecting the castle and giving it shape.
Conceptual Metaphor
A FORTRESS WALL (provides protection and defines boundaries). A SKELETON/EXOSKELETON (provides structural support from the outside).
Practice
Quiz
Which of the following organisms typically possesses a cell wall?