Exam

• Why ATP needed to move molecules against concentration gradient:

  • ATP binds to carrier protein
  • bone between phosphates is broken to provide evergy to move molecule from low to high concentration
• Why enzymes needed in human body:

  • Enzymes lower activation every for reaction.
  • lower amount on energy required for reaction
  • without enzymes body reaction would be too slow to survive
• purpouse of enzymes in catabolic and anabolic reactions:

  • emzymes lower Ea to speed up reaction
  • catabolic reactions require enzymes to breaksown large substrate
  • anabolic reactions need enzymes to 'build up' smalller substrates
• How is ATP formed:

  • ADP combines with phosphate molecume
  • required energy which is stored between 2nd and 3rd phosphate
• explain role of lymphatic system in absorbing nutrience. provide examples:

  • lacteal withing vili of SI absorb fats and fat-soluable vitimins which are recombined into fatty acids and gycerol.
  • fats and fat-soluable vitimins are transported in lymphatic system and empty into blood through veins in upper chest