3) Enzymes

Question 1

Enzymes

Answer 1

protein acts as biological catalyst

Question 2

role of enzyme

Answer 2

Enzymes have specific active site which is complementary to a specific substrate so they can fit together to form an ESC

Question 3

Mechanism of how enzyme works

Answer 3

works under optimum temperature and pH
products leave active site unchanged

Question 4

Why enzymes have a specific shape of active site/functions

Answer 4

Enzymes are specific in their function because they have specific active site, which is complementary to a specific substrate, where enzymes are proteins with specific sequence of amino acids, which curl up to give a specific shape of active site

Question 5

Factors affecting enzymatic activity

Answer 5

1.Temperature
2.pH
3.Enzyme concentration
4.Substrate concentration
5.Surface area

Question 6

Explain the effect of temperature on the rate of enzyme activity

Answer 6

As temperature increases, molecules gain K.E, frequency of collisions increase, so more successful collisions, so more ESC
Optimum temperature showing maximum rate of enzyme activity, showing maximum number of ESCs
Above optimum, the enzyme is denatured, active site lost its shape, no longer complementary to substrate, no more ESC