enzymes

Question 1

class 1 enzymes

Answer 1

oxidoreductases = redox reactions

Question 2

dehydrogenase

Answer 2

transfer H between substrate and coenzyme

Question 3

oxygenase

Answer 3

use O2 as substrate

Question 4

hydroxylase

Answer 4

add OH

Question 5

peroxidase

Answer 5

use O-O as substrate

Question 6

class 2 enzymes

Answer 6

transferaseas = transfer chemical groups

Question 7

kinase

Answer 7

transfer terminal phosphoryl group of ATP

Question 8

phosphorylase

Answer 8

cleaves by adding Pi

Question 9

glycosyl transferase

Answer 9

transfer monosaccharides

Question 10

transaminase

Answer 10

transfer amino acids

Question 11

class 3 enzymes

Answer 11

hydrolases = cleave chemical bonds via water

Question 12

protease

Answer 12

cleave peptide bonds

Question 13

lipase

Answer 13

cleave lipid molecules

Question 14

phosphatase

Answer 14

cleave phosphoryl groups

Question 15

endo

Answer 15

cleave internal bonds

Question 16

exo

Answer 16

cleaves terminal bond

Question 17

class 4 enzymes

Answer 17

lyases = remove groups nonhydrolytically to form double covlaent bonds

Question 18

dehydratase

Answer 18

remove water

Question 19

decarboxylase

Answer 19

remove carbonyl

Question 20

synthase

Answer 20

eliminate double bond to form new bond in substrate

Question 21

class 5 enzymes

Answer 21

isomerases

• interconvert constitutional
• cis/trans
• steroisomers

Question 22

class 6 enzymes

Answer 22

ligase = couple hydrolysis of phosphoanahydride bond to form another bond

Question 23

synthetase

Answer 23

ATP hydrolysis