03/27

Question 1

Reactions that use water to split complex molecules

Answer 1

Hydrolysis

Question 2

What is another word for extracellular enzymes

Answer 2

Exoenzymes

Question 3

What plated media that identify extracellular enzymes

Answer 3

Starch agar, DNase agar, tributyrin agar, and milk agar

Question 4

What detects gelatinase

Answer 4

Nutrient gelatin

Question 5

What is starch

Answer 5

A polysaccharide made up of ~-D-glucose subunits

Question 6

Linear

Answer 6

Amylose

Question 7

Branched

Answer 7

Amylopectin

Question 8

What is the end result of starch reactions

Answer 8

The complete hydrolysis of the polysaccharide to its individual ~-glucose subunit

Question 9

What is used to detect the presence or absence of starch in the vicinity around the bacterial growth

Answer 9

Reagent iodine

Question 10

What does the clearing in the medium around the organism demonstrate

Answer 10

A positive result for starch hydrolysis

Question 11

Blood agar is useful for detecting what

Answer 11

Hemolytic ability of gram positive cocci

Question 12

What species is blood agar typically used for

Answer 12

Streptococcus

Question 13

What are able to destroy red blood cells and hemoglobin

Answer 13

Hemolysins

Question 14

The complete destruction of red blood cells and hemoglobin

Answer 14

B hemolysis

Question 15

The partial destruction of RBC(green)

Answer 15

~ hemolysis

Question 16

Nonhemolysis and appears as simple growth

Answer 16

Y hemolysis

Question 17

Hemolysins produced by streptococci

Answer 17

Streptolysins

Question 18

This is oxygen liable

Answer 18

Streptolysin O

Question 19

Oxygen stable but expresses itself under anaerobic conditions

Answer 19

Streptolysin S

Question 20

What is blood agar used for

Answer 20

Isolation and cultivation of many types of fastidious bacteria