Temp And pH

Question 1

Why does activity of enzyme increase as temp increases

Answer 1

Enzyme and substrate moving faster
= more collisions per second between substrate and active site

Question 2

Describe optimum temp of enzymes

Answer 2

Maximum frequency of successful collisions between substrate and active site

Question 3

What happens if temp too high

Answer 3

Enzyme molecule vibrates and shape of active site changes
= substrate no longer fits into active site
= active site denatured
= enzyme can’t catalyse reaction