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Answers
Plasma Membrane Answer:
function and importance;
2..A major role of the cell wall is to form a framework for the cell to prevent over expansion. Cellulose fibers, structural proteins, and other polysaccharides help to maintain the shape and form of the cell. Additional functions of the cell wall include: Support: The cell wall provides mechanical strength and support
in the absence of cell wall;
If cell wall is absent in plant cell then all the functioning of all the cell organelles present inside the cell would be affected as diffusion of various substances would not occur. The cell membrane provides several vital functions for the cell. Cell walls anchor the cytoplasm and hold the cell's shape.
3. Plant Cell Animal Cell
Cell Shape
Square/rectangular Irregular/round
Cell Wall
Present Absent
Endoplasmic Reticulum
Present Present
Nucleus
Present and lies on one side of the cell Present and lies in the centre of the cell
Lysosome
Present but are very rare Present
Centrosomes
Absent Present
Golgi Apparatus
Present Present
Cytoplasm
Present Present
Ribosomes
Present Present
Plastids
Present Absent
Vacuoles
Few large or a single, centrally positioned vacuole Usually small and numerous
Cilia
Absent Present in most of the animal cells
Mitochondria
Present but fewer in number Present and are numerous
Mode of Nutrition
Primarily autotrophic Heterotrophic
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Explanation: