Cells in the stomach produce an enzyme called pepsin to help digest food. Pepsin is most
effective at a pH of 2. Which of these graphs most likely shows what will happen to the
activity of pepsin as the pH of the stomach is increased?
A.
B.
EFFECT OF PH
ON PEPSIN ACTIVITY
EFFECT OF PH
ON PEPSIN ACTIVITY
Pepsin Activity
Pepsin Activity
0
2
3
2
PH
EFFECT OF PH
ON PEPSIN ACTIVITY
pH
EFFECT OF PH
ON PEPSIN ACTIVITY
D.
C.
Pepsin Activity
Pepsin Activity
0
3
pH
N
A b c d
