2.1 – Cells and transport in them

Pages 44 – 47 of the CGP revision notes.

Key questions

  • Functions of nucleus, cytoplasm, membrane, mitochondria ?
  • Three additional structures of plant cells—with functions?
  • How do yeast and bacterial cells differ?
  • What’s the definition of “diffusion”?
  • What is a “diffusion gradient” (aka “concentration gradient”?)
  • How are palisade cells, guard cells, red blood cells, egg cells and sperm cells adapted to their function?
  • What are tissues, organs and systems?  Examples?