H+ and denaturation of enzymes

Question 1

Role of enzymes

Answer 1

Lower activation energy of the reaction it catalyses so it speeds up the rate of reaction. This reaction is faster if the correct conditions are in place. e.g. pH levels

Question 2

Enzyme specificity

Answer 2

Enzymes have a specific tertiary structure. The active site of an enzyme is complementary to a specific substrate that only it bind to the site and cause enzyme substrate complexes to be formed.

Question 3

Role of hydrogen ions

Answer 3

It maintains pH levels in the body. Too many H+= acidic pH
Too little = alkaline condition

Question 4

The effect of high/low hydrogen ions

Answer 4

If the pH levels goes above or below the optimum pH level it causes the denaturation of enzymes. It causes the tertiary structure to change. As a result the active site changes shape and is no longer complementary as hydrogen/ionic/ disulphide bonds are broken. So it does not fit the active site so not specific to enzyme and as a result no enzyme substrate complexes are formed.

Question 5

importance of ions

Answer 5

-Digestive system (talk about enzymes) and give example