How does the enzyme concentration influence the chemical reaction Flashcards
1
Q
Can the active site of an enzyme be used time and time again
A
Yes
2
Q
How much substrate is needed to catalyse a high amount of substrate
A
- A very small amount
3
Q
A
4
Q
Why is it the case that only a small amount of substrate is needed to catalyse alot of substrate
A
- After the reaction takes place the product is repelled and the active site is free to accept more substrate
5
Q
What is the turnover number
A
- The number of molecules that one molecul of enzyme can turn into products in 1 minute
6
Q
Is there much difference in the turn over numbers of different enzymes
A
- Yes, The turnover number for Carbonic anhydrase is 36,000,000 whereas for Lysosyme is 60
7
Q
Where is carbonic hydrase found
A
In the blood
8
Q
What does carbonic anhydrase do?
A
- It catalyses the reaction in which carbon dioxide disolves in water
- The reaction does happen naturally, however it happend 10 million times faster if carbonic anhdrase is present
9
Q
What is a common waste product of chemical reactions in cells
A
- Hydrogen peroxide
10
Q
What is the problem with hydrogen peroxide
A
- It is poisonous
11
Q
Under what conditions would the rate of chemical reaction be directly proportional to the enzyme concentration
A
- When pH and Temperature are optimal and there is an excess of substrate
