ATS GCSE Biology - Plants essential other terms

• respiration

  exothermic biological reaction

  
• photosynthesis

  endothermic reaction converting light energy into chemical energy

  
• active transport


  moves substances from a more dilute solution to a more concentrated solution against a concentration gradient

  
• osmosis


  movement of water particles from a dilute to a concentrated solution through a partially permeable membrane

  
• diffusion


  movement of particles from a high to a low concentration resulting in a net movement of particles

  
• mode average


  the most frequent number

  
• median average


  arrange numbers in order lowest to highestit's now the middle number

  
• mean average


  add together and divide by how many number you added together

  
• solvent


  the liquid dissolving a solid water

  
• solute


  a solid dissolvedsugar or mineral ions

  
• concentrated


  fewer water particles lots of solute particles

  
• dilute


  lots of water particles few solute particles