12 Parents
| Identifier | Name | Description |
|---|---|---|
| GO:0005618 | cell wall | The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins. |
| GO:0005623 | cell | The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope. |
| GO:0044464 | cell part | Any constituent part of a cell, the basic structural and functional unit of all organisms. |
| GO:0005575 | cellular_component | The part of a cell or its extracellular environment in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together. |
| GO:0071944 | cell periphery | The part of a cell encompassing the cell cortex, the plasma membrane, and any external encapsulating structures. |
| GO:0030312 | external encapsulating structure | A structure that lies outside the plasma membrane and surrounds the entire cell. |
| GO:0044426 | cell wall part | Any constituent part of the cell wall, the rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis. |
| GO:0044462 | external encapsulating structure part | Any constituent part of an external encapsulating structure, a structure that lies outside the plasma membrane and surrounds the entire cell. |
| GO:0009505 | plant-type cell wall | A more or less rigid stucture lying outside the cell membrane of a cell and composed of cellulose and pectin and other organic and inorganic substances. |
| GO:0009530 | primary cell wall | A plant cell wall that is still able to expand, permitting cell growth. Primary cell walls contain more pectin than secondary walls and no lignin is present. |
| GO:0009531 | secondary cell wall | A plant cell wall that is no longer able to expand and so does not permit growth. Secondary cell walls contain less pectin that primary cell walls. The secondary cell is mostly composed of cellulose and is strengthened with lignin. |
| GO:0048217 | pectic matrix | The gel-like pectin matrix consists of the interlinked acidic and neutral pectin networks that are further cross-linked by calcium bridges. Pectins consist largely of long chains of mostly galacturonic acid units (typically 1,4 linkages and sometimes methyl esters). Three major pectic polysaccharides (homogalacturonan, rhamnogalacturonan I and rhamnogalacturonan II) are thought to occur in all primary cell walls. |
13 Relations
| Relationship |
Parent Term . Identifier |
Child Term . Identifier |
|---|---|---|
| is_a | GO:0044426 | GO:0048217 |
| part of | GO:0009530 | GO:0048217 |
| part of | GO:0009531 | GO:0048217 |
| part of | GO:0005575 | GO:0048217 |
| part of | GO:0005618 | GO:0048217 |
| is_a | GO:0005575 | GO:0048217 |
| part of | GO:0044464 | GO:0048217 |
| part of | GO:0030312 | GO:0048217 |
| is_a | GO:0044462 | GO:0048217 |
| is_a | GO:0044464 | GO:0048217 |
| part of | GO:0009505 | GO:0048217 |
| part of | GO:0071944 | GO:0048217 |
| part of | GO:0005623 | GO:0048217 |
