enzymes xx

Question 1

what are enzymes?

Answer 1

special proteins that act as biological catalysts.

Question 2

what do enzymes do?

Answer 2

break down molecules into shorter ones (polymers and monomers)

Question 3

what substrates do enzymes break down?

Answer 3

only substrates that fit their active site (‘lock and key’ principle)

Question 4

whats the enzyme practical?

Answer 4

-mix amylase with starch and start timer.
-remove a few drops from mixture every 10 seconds and add to iodine.
-record the time. taken for no starch to be detected (will remain orange)
-repeat at different temperatures or with different pH buffer solutions added.
-optimum pH/temp is between 2 lowest times

Question 5

what do carbohydrates break into?

Answer 5

into carbohydrates into simple sugar

Question 6

what does amylase break starch down into?

Answer 6

glucose

Question 7

what does proteases break proteins into?

Answer 7

amino acids

Question 8

what do lipases break lipids into?

Answer 8

glycerol and fatty acids