enzymes

Question 1

what do enzymes do

Answer 1

speed up useful reactions by acting as biological catalysts

Question 2

what are enzymes made up of and how do they do their job

Answer 2

chains of amino acids and are folded into unique shapes

Question 3

what does every enzyme have and what is it’s purpose

Answer 3

an active site which is the a part where it joins onto its substrate to catalyse the reaction

Question 4

when a substrate molecule ________ with an ________ molecule, the __________ shape must match the shape of the _________ ______ or the reaction wont be ____________ . what is the name for this

Answer 4

collides, enzyme, substrates, active site, catalysed
name - lock and key

Question 5

what determines the shape of the enzymes active site

Answer 5

the specific sequence of amino acids

Question 6

why do enzymes need the right temperature

Answer 6

as all enzymes have an optimum temperature they work best at

Question 7

what happens if an enzyme gets too hot and example

Answer 7

the bonds holding it together breaks which changes the shape of the active site so the substrate wont fit e.g boiling

Question 8

why does the pH affect enzymes

Answer 8

if its too high or too low, it interferes with the bonds holding the enzyme together which changes the shape of the active site and denatures the enzyme

Question 9

what is the optimum pH that enzymes work best at

Answer 9

neutral pH 7 but not always