How the bacteria differs from the plants with respect of their cell wall?
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plants
The primary cell wall, generally a thin, flexible and extensible layer formed while the cell is growing.The secondary cell wall, a thick layer formed inside the primary cell wall after the cell is fully grown. It is not found in all cell types. Some cells, such as the conducting cells in xylem, possess a secondary wall containing lignin, which strengthens and waterproofs the wall.The middle lamella, a layer rich in pectins. This outermost layer forms the interface between adjacent plant cells and glues them together.
bacteria
Around the outside of the cell membrane is the bacterial cell wall. Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids.[32] Bacterial cell walls are different from the cell walls of plants and fungi which are made of cellulose and chitin, respectively.[33] The cell wall of bacteria is also distinct from that of Archaea, which do not contain peptidoglycan. The cell wall is essential to the survival of many bacteria, although L-form bacteria can be produced in the laboratory that lack a cell wall.[34] The antibioticpenicillin is able to kill bacteria by preventing the cross-linking of peptidoglycan and this causes the cell wall to weaken and lyse.[33] The lysozyme enzyme can also damage bacterial cell walls.
The primary cell wall, generally a thin, flexible and extensible layer formed while the cell is growing.The secondary cell wall, a thick layer formed inside the primary cell wall after the cell is fully grown. It is not found in all cell types. Some cells, such as the conducting cells in xylem, possess a secondary wall containing lignin, which strengthens and waterproofs the wall.The middle lamella, a layer rich in pectins. This outermost layer forms the interface between adjacent plant cells and glues them together.
Secondary cell walls contain a wide range of additional compounds that modify their mechanical properties and permeability. The major polymers that make up wood (largely secondary cell walls) include:
cellulose, 35-50%xylan, 20-35%, a type of hemicelluloselignin, 10-25%, a complex phenolic polymer that penetrates the spaces in the cell wall between cellulose, hemicellulose and pectin components, driving out water and strengthening the wall.bacteria
Around the outside of the cell membrane is the bacterial cell wall. Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids.[32] Bacterial cell walls are different from the cell walls of plants and fungi which are made of cellulose and chitin, respectively.[33] The cell wall of bacteria is also distinct from that of Archaea, which do not contain peptidoglycan. The cell wall is essential to the survival of many bacteria, although L-form bacteria can be produced in the laboratory that lack a cell wall.[34] The antibioticpenicillin is able to kill bacteria by preventing the cross-linking of peptidoglycan and this causes the cell wall to weaken and lyse.[33] The lysozyme enzyme can also damage bacterial cell walls.
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