1 - Key Concepts - Enzymes

Question 1

What is the active site?

Answer 1

The part where the enzyme joins the substrate to catalyse the reaction

Question 2

What is Enzyme Specificity?

Answer 2

Only works with one substrate

Question 3

How can enzymes be denatured?

Answer 3

Changes in active site

Question 4

What effect does Temperature have on Enzyme Activity?

Answer 4

Increase temp = increase rate
If it gets too hot it denatures (changes shape)

Question 5

What effect does Substrate Concentration have on Enzyme Activity?

Answer 5

Higher = Faster reaction
Only up to a certain point

Question 6

What effect does pH have on Enzyme Activity?

Answer 6

Too high/too low = denatures
Enzymes have an optimal pH

Question 7

How do you calculate rate for enzyme activity?

Answer 7

rate = change/time

Question 8

Why are Enzymes as Biological Catalysts important?

Answer 8

Enzymes reduce the need for high temperatures & speed up the useful chemical reactions in the body