B3 - Cells

B3 - Cells

1. Plants & Animal Cells

   • Nucleus
     • Contains DNA (Chromosomes)
   • Cell Membrane
     • Holds the cell together
   • Ribosome
     • Where proteins are synthesised
   • Cytoplasm
     • Gel-like substance where most of the cell's chemical reactions happen
   • Mitochondria
     • The powerhouse of the cell, respiration provides energy

2. Just Plant Cells

   • Cell wall
     • Made of cellulose, it supports the cell
   • Vacuole
     • A relatively large structure that contains cell sap, a weak solution of sugar and salts
   • Chloroplasts
     • Where photosynthesis takes place

3. Bacterial Cells

   • Cell Membrane
   • Cytoplasm
   • Cell wall
   • No nucleus, instead a single circular stand of DNA