Enzymes have a/an …..pH at which they work fastest.
a) optimum
b) minimum
c) maximum
d) both b and c
For most of the enzymes, the pH is about……….
a) 1 – 2
b) 3 – 5
c) 7 – 8
d) 11 – 13
Explanation: this is the physiological pH of most cells
Protease enzymes in animal stomach have an optimum pH……..
a) 1
b) 2
c) 12
d) 13
The pH affects the
charge of the amino acids at the………
a) substrate
b) active site
c) framework
d) all of these
What is the optimum pH of pancreatic lipase enzyme?
a) 8.0
b) 7.0
c) 1.0
d) 13.5
Explanation: slightly alkaline medium
What is the optimum pH of stomach lipase enzyme?
a) 8.0 – 9.0
b) 7.0 – 10.0
c) 4.0 – 5.0
d) 1.0 – 2.0
Explanation: acidic medium
