ch 3 part4 reviews Flashcards
Denaturation
de ne h ir ation
disruption of protein folding
loss of protein structre and function
happen in extreme environment ( ph tempreture )
Why do some people have curly hair and others have straight?
if one parent gives you a curly-haired gene and the other parent gives you a straight-haired gene, you’ll be born with curly hair
Enzymes are proteins that ____________reaction
speed up
Activation energy
the energy required to start reaction
Activation energy versus enzyme
enzyme lower the activation energy in reaaction
enzyme used to breakdown millk sugar :
lactase
Factors that influence enzyme activity :
Temperature
PH
enzyme and substrate concentration
Presence of inhibitors or activators
when substare can not increase reaction rate :
if all enzyme active sites are saturated and substrate
high rate of collision between enzyme and substrate
the reason of increase reaction
tempreture above optimum will deacrease reaction rate why :
enzyme will lose it shape and denature
above and below optiam PH will :
distrupte enzyme function and decrease reaction
______________increase reaction _______________decrease reaction
presence of activator , inhibitor
sequense of amino acid is incorrect
Misspelled” Proteins
as result of misspelled protein :
active site distrubtion and loss of function
Nonfunctional enzymes are responsible for many diseases like :
-lactose intolerance
-phenylketonuria
