Alternating rows of 10-65 sugars to form a carbohydrate “backbone”.

Peptidoglycanconsists of repeating disaccharideattached by polypeptides to form a lattice that surrounds and protects the entire cell.

Composed of macromolecular network called peptidoglycan.

Major function is to prevent bacterial cells from rupturing.

Protects it and the interior of the cell from adverse changes in the outside environment.

Surrounds the underlying, fragile plasma (cytoplasmic) membrane.

Is a complex, semi-rigid structure responsible for the shapeof the cell as well as the size.

Based on the structure and types of carbohydrates in the glycocalyx, your body can recognize cells and determine if they should be there or not.The bacterial Cell Wall Gram + & Gram – Bacteria It can provide cushioning and protection for the plasma membrane, and it is also important in cell recognition. The glycocalyx of a cell has many functions. Together these carbohydrates form the glycocalyx. That is, they are only found on the extracellular side of a cell membrane. Carbohydrates, or sugars, are sometimes found attached to proteins or lipids on the outside of a cell membrane. Such cell adhesion molecules have now been identified in several cellular systems.

Cell recognition is defined as an active process giving rise to a specific response.Ĭell adhesion is a good example of cell recognition when it can be demonstrated that the adhesion is mediated by molecules having specific binding properties. Detailed Solution for Test: Cell Wall, Cell Membrane & Glycocalyx - Question 17Ĭarbohydrates which are present in the cell membrane take part in cell recognition.

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