SCIENCE
CELL BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cell membrane
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nuclear membrane
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plasma membrane
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cell wall
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Detailed explanation-1: -The cell wall is the non-living structure of the cell made up pf cellulose in plant cells. It is very tough, a rigid layer that surrounds some types of cells. It surrounds the cell membrane and provides these cells with structural support and protection. In addition, the cell wall is acting as a filtering mechanism.
Detailed explanation-2: -The cell wall is a non-living, rigid membrane that is made up of cellulose. It provides mechanical strength and support to the cell.
Detailed explanation-3: -The cell wall is the outermost covering of plant cells. The cell wall is present only in plants and in some fungi, bacteria and algae. It is present outside the cell membrane and is tough, flexible and sometimes rigid in its texture.
Detailed explanation-4: -Plant cell walls are made out of cellulose. Fungal cell walls are made of chitin, the same stuff that insect skeletons are made of. Bacterial cell walls are made out of peptidoglycan, which is a mixed protein-sugar material unique to bacteria. Animal cells don’t have cell walls.
Detailed explanation-5: -Cells of bacteria, fungi, algae, and higher plants are surrounded by rigid cell walls, which are an integral part of the cell. Although not encased in cell walls, animal cells in tissues are closely associated with an extracellular matrix composed of proteins and polysaccharides.