Cell and Cell Organelles

• Components of the cell

• Cell membrane
  • It is the protective layer that surrounds the cell.
  • Cell membrane selectively allows the entry of only some substances and prevents the movement of other materials. Hence, it checks the transport of substances in and out of the cell.
• Cell wall
  • In plants, an extra protective covering of a polysaccharide, cellulose is present.
  • It is called cell wall that protects plant cells from environmental variations.
• Cytoplasm
  • It is a jelly-like substance present between cell membrane and nucleus.
  • It cont…