IMPORTANCE

• WHAT IS HOMEOSTASIS?

  maintenance of an internal environment within restricted limits in organisms
• WHAT IS THE INTERNAL ENVIRONMENT MADE UP OF?

  tissue fluid which bathes cells
• IMPORTANCE OF HOMEOSTASIS?

  ENZYMES

  • control biochemical reactions within cells/ other proteins
  • sensitive to changes in pH or temperature

  WATER POTENTIAL

  • of blood and tissue fluids
  • cells can shrink, expand or burst due to osmosis
  • must maintain constant blood glucose concentration
  • can also affect substrate or enzyme concentration affecting rate of reaction

  ADAPTIONS

  • organisms have wider geographical ranges
  • more chances of finding food, shelter, etc