亚洲网紅露点

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cell wall

[ sel wawl ]

noun

Biology.
  1. the definite boundary or wall that is part of the outer structure of certain cells, as a plant cell.


cell wall

noun

  1. the outer layer of a cell, esp the structure in plant cells that consists of cellulose, lignin, etc, and gives mechanical support to the cell
鈥淐ollins English Dictionary 鈥 Complete & Unabridged鈥 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cell wall

  1. The outermost layer of cells in plants, bacteria, fungi, and many algae that gives shape to the cell and protects it from infection. In plants, the cell wall is made up mostly of cellulose, determines tissue texture, and often is crucial to cell function.
  2. Compare cell membrane

cell wall

  1. The rigid outer covering of a typical plant cell , composed mainly of cellulose and lying outside the cell membrane . Animal cells do not have cell walls.
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Notes

It is the cell walls that give plant stems and wood their stiffness.
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亚洲网紅露点 History and Origins

Origin of cell wall1

First recorded in 1840鈥50
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Compare Meanings

How does cell wall compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Examples have not been reviewed.

Unlike eating fresh fruit - which is much better for a child - pureeing releases sugar from inside fruit cell walls and can be absorbed much more quickly.

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Zhoie Perez slouched against the holding cell wall in Men鈥檚 Central Jail and closed her eyes, hoping a guard would jolt her awake with the words she鈥檇 been waiting for: The bus is here!

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For example, the cell walls of plants provide structural strength and are rich in fiber, while their energy vesicles store carbohydrates.

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Finding scratch marks on a cell wall that he believes he made, he knelt down and began to cry.

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Gram-positive and gram-negative bacteria differ in the composition of their cell walls.

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