temp and enzyme activity

• enzymes have optimum temps which they catalyse reactions at a max rate
• lower temps

  • slow due to less KE
  • lower frequency of successful collisions- subtrate and as
• denaturation

  • increased KE of enzymes puts strain on its bonds
  • weaker H+ and ionic bonds
  • causes tertiary structure of enzymes to change
  • AS damaged and no longer complementary shape to substrate so no longer binds
• some chemical reactions in organisms take place faster at higher temps and some at lower temps

  species change distribution in response to changing temps in order to survive