Question

describe the composition of cell wall and plasma membrane How do they help in entry and exit of different substances​

Answer 1

cell wall composition of most plants is.. cellulose, hemicellulose,pectins & proteins

plasma memb. is composed of lipids,tht are arranged in a bilayer(lipid bilayer)..cell memb. also possess protein and carbohydrates.

Explanation:

fluid nature of memb. help in entry and exit of diff. substances.also plasma memb. is selectively permeable to some molecules pt. across it.

& as cell wall helps in cell to cell interaction and provides barrier to undesirable macromolecules.

the cell wall and middle lamella may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells. through these also some substances move from one cytoplasm to another..

thank you

Answer 2

Cell Wall and Plasma Membrane

Explanation:

• The composition of cell walls change radically all through the distinctive kingdoms
• The cell layer is made out of a phospholipid bilayer which additionally contains cholesterol and is interlaced with various protein channels
• A phospholipid bilayer is made of two layers of phospholipids, which have a head and a tail
• Cell divider is comprised of cellulose while cell membrane is comprised of lipids and proteins
• Cell divider is non-living while cell layer is living