How ezymes work?

Question 1

What are enzymes?

Answer 1

-> biological catalysts that speed up chemical reaction
-> made of protein
-> have active site that binds to the substrate

Question 2

lock & key model

Answer 2

the active site and substrate have complementary shapes.

Question 3

induced fit model

Answer 3

The active site changes shape slightly to fit the substrate.

Question 4

Enzyme-substrate complex

Answer 4

-> temporary bond between an enzyme and its substrate
-> allows the enzyme to change the substrate.

Question 5

Product formation

Answer 5

The enzyme breaks down the substrate into products.

Question 6

Factors affecting enzyme activity

Answer 6

-> temp
-> pH
-> Substrate concentration
-> Enzyme concentration

Question 7

Temperature

Answer 7

Enzymes have an optimum temperature at which they work best.

Question 8

pH

Answer 8

Enzymes have an optimum pH at which they work best.

Question 9

Substrate concentration

Answer 9

As substrate concentration increases, reaction rate increases until the enzyme becomes saturated.

Question 10

Enzyme concentration

Answer 10

As enzyme concentration increases, reaction rate increases.