.2 animals and plants cells

• Plant cells have a rigid cell wall made up of cellulose fibers, providing support and protection.
• Most animal cells have the following parts:

  a nucleus

  cytoplasm

  a cell membrane

  mitochondria

  ribosomes.
• In addition to the parts found in animal cells, plant cells often have:

  chloroplasts

  a permanent vacuole filled with cell sap
• Plant and algal cells also have a cell wall made of cellulose, which strengthens the cell.