Enzymes 1 And 2

Question 1

What are enzymes

Answer 1

They are proteins or RNA that increase the rate of reaction by lowering the activation energy

Question 2

List the order by which enzymes are classified

Answer 2

1. Oxidoreductases
2. Transferases
3. Hydrolases
4. Lyases–involves a group elimination to form a double bond
5. Isomerases
6. Ligases–are coupled with ATP hydrolysis

Question 3

holoenzyme

Answer 3

is a protein and a cofactor, it is active

Question 4

apoenzyme

Answer 4

Is a protein alone, it is inactive

Question 5

cosubstrate examples

Answer 5

NAD,

Question 6

what amino acids CAN donate/accept protons

Answer 6

aspartic acid, glutamic acid, histidine, cysteine, tyrosine, lysine

Question 7

metalloenzymes

Answer 7

contain tightly bound metal ions

Question 8

metal-activated wnzymes

Answer 8

contain loosely bound metal ions