M3. Enzyme specificity

Question 1

enzyme’s activity is restricted to a specific:

four

Answer 1

1. substrate
2. group of substrate
3. type of chemical bond
4. type of chemical reaction

Question 2

Degree of specificity is determined by the ____.

Answer 2

active site

Question 3

What are the 4 Enzyme Specificity?

Answer 3

1. Absolute specificity
2. Group specificity
3. Linkage specificity
4. Stereochemical specificity

Question 4

• only one reaction
• most restrictive

example of enzyme of this type specificity?

Answer 4

Absolute specificity

Catalase

Question 5

1. Act only on molecules that have a specific functional group
2. examples of functional groups?

example of enzyme of this type specificity?

Answer 5

1. Group specificity
2. examples:
   - hydroxyl
   - amino
   - phosphate

Carboxyl-peptidase

Question 6

1. Act on the particular type of bond irrespective to the rest of the molecular structure
2. hydrolyze phosphate – ester bonds in all types of phosphate esters

example of enzyme of this type specificity?

Answer 6

1. Linkage Specificity
2. Phosphatases

Phosphatases

Question 7

act on particular isomer

Answer 7

Stereochemical specificity