key biochemical tests

Question 1

casein hydrolysis

Answer 1

detects presence of caseinase

Question 2

caseinase

Answer 2

s an enzyme that hydrolyses the milk protein casein

Question 3

what does casein hydrolysis differentiate between

Answer 3

aerobic actinomycetes- based on casein utilisation

Question 4

does streptomycin or nocadia use casein

Answer 4

streptomycin

Question 5

catalase test

Answer 5

detects catalase

Question 6

catalase

Answer 6

converts H2O2 to H2O and O2

Question 7

which bacteria does the catalase test differentiation

Answer 7

staph and bacillus from clostridium

Question 8

coagulas test

Answer 8

detects presence of coagulase- causes plasma to clot

Question 9

esculin hydrolysis

Answer 9

tests for cleavage of glycoside

Question 10

what is the esculin test used to differentiate betwen

Answer 10

staph, strept and others

Question 11

B galactosidase

Answer 11

demonstates the presence of an enzyme that cleaves lactose to glucose and galactose

Question 12

b-galactosidase separates

Answer 12

enteric bacteria e.g. citrobacter and salmonella

Question 13

B-galactosidae reaction

Answer 13

hydrolyses lactose to glucose and galactose