Reactions/Enzymes

Question 1

What is a cofactor

Answer 1

Non-protein component required to allow an enzyme to perform its role.

Bind w enzyme to promote enzymatic process

Question 2

Types of cofactors

Answer 2

Inorganic ions: Mg, Zn, Cu, Fe, Mn, Ni, Mb
Organic (coenzymes): Typically derived from vitamins

Question 3

Transferase

Answer 3

Transfer functional group from one substrate to another

Rxn: Substitution

Question 4

Hydrolase

Answer 4

Break bonds using water (hydrolysis)

Rxn: Aceyl substitution (adding water to do breaking)

Question 5

Oxidoreductases

Answer 5

Catalyze REDOX reactions

Transfer of e- from one substrate (reductant) to another substrate (oxidant) H&O

Rxn: REDOX

Question 6

Lyase

Answer 6

Break chemical bonds (not hydrolysis or REDOX)

Catalyze elimination reactions. Removing a group

Rxn: elimination

Question 7

Ligases

Answer 7

Joining of two molecules together. Forms chemical bond between 2 subtrates.

Rxn: addition

Question 8

Isomerases

Answer 8

Catalyze structural shifts (intermolecular group transfer)

Promote structural shifts in a substrate

Rxn: isomerization