NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL ORGANELLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A stiff structure that surrounds and protects a cell; found in plant, fungus, and some bacteria cells.
A
cell wall
B
membrane
C
nucleus
D
chloroplast
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -The Cell Wall A cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell. The cell wall contains not only cellulose and protein, but other polysaccharides a s well . The cell wall provides structural support and protection.

Detailed explanation-3: -A cell wall is a tough, and rigid layer of polysaccharides lying outside of the plasma membrane in plants, some fungi, and some protists. The cell wall provides these cells with structural support and protection.

Detailed explanation-4: -The cell wall of fungus is made up of fungal cellulose and cell wall of bacteria is made up of peptidoglycans. Fungal cellulose or chitin microfibrils are made up of bundles of unbranched chains of -1, 4 acetyl glucosamine residues. Peptidoglycans are the structural elements of almost all the bacterial cell walls.

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