Micro Lab Finals

Question 1

Caseinase (proteinase) breaks down

Answer 1

Milk protein

Question 2

In the carbohydrate test phenol red broth base was used with the appropriate carbohydrate if the indicator turns yellow, it means

Answer 2

Acid is produced

Question 3

An enzyme that breaks down fat Ito smaller unit s termed

Answer 3

A lipase

Question 4

In the following equation indicate the enzyme which facilitates reaction

Hydrogen peroxide>water+free oxygen

Answer 4

Catalase

Question 5

The test reagent for indoor test is

Answer 5

Kovak’s reagent

Question 6

The voges proskquer test actually test for the presence of

Answer 6

Acetyl methyl carbinal

Question 7

The imvic series is particularly useful in distinguishing between

Answer 7

Eschirechia and Enterobactor klebsiella

Question 8

The methyl red test is actually a test for the presence of

Answer 8

Acid

Question 9

Triple Sugar Iron Agar (TSI) can give you the following information about an organism

Answer 9

• lactose utilization
• glucose utilization
• H2S
• gas production

All of these

Question 10

Which of the following media would be most suitable for detecting H2S production

Answer 10

Sim

Question 11

In the Nitrate reduction test a negative test for nitrate indicates

Answer 11

Nitrate has remain unchanged

Question 12

The catalase test is particularly useful in

distinguishing between

Answer 12

Streptococcal and Staphylococci

Question 13

The oxidase test aids in differentiation among membrane of the following genera

Answer 13

Pseudomonas and Neisseria

Question 14

African sleeping sickness is caused by a

Answer 14

Protozoan

Question 15

Trypanosomes gambiense belongs to the class

Answer 15

Mastigophora

Question 16

The medium that would be most suitable for the cultivation of a wide variety of fungal types would be

Answer 16

Sab-dex

Question 17

Fungi are best grown at

Answer 17

20-25 degree Celsius

Question 18

The common black bread mold is called

Answer 18

Rhizopus

Question 19

Which of the following stages of malarial parasite are found in the mosquito?

Answer 19

Sporoite

Question 20

Which of the following diseases are NOT closely related

Answer 20

Dengue fever

Question 21

Measurement of antibiotic resistance is done by measuring the diameter around a disc is called

Answer 21

Zone of inhibition

Question 22

Which of the following disinfectant/ antiseptic substances do not belong to the heavy metal group

Answer 22

Phenol

Question 23

When using a disinfectant or antiseptic it is best to keep in mind that the efficiency in influenced by several factor including…

Answer 23

• concentration
• length of exposure
• environmental conditions

All of these

Question 24

Normal flora of the mouth or throat would include all BUT ONE of the following

Answer 24

Mycobacterium tuberculosis

Question 25

Which of the following conditions is not associated with staphylococcus aureus

Answer 25

Valley fever

Question 26

Which of the following would distinguished between staphylococcus aureus and staphylococcus epidermidis

Answer 26

Coagulase test

Question 27

Which test will most effectively separate the hemolytic group A streptococci from group B through N

Answer 27

• bacitracin
• camp test
• bile esculin test
• 6.5% NaCl median

All of these

Question 28

Beta hemolysis of red blood cells is called

Answer 28

Complete

Question 29

Which of the following media is the most suitable for the cultivation of gram positive cocci

Answer 29

Blood or Rose agar

Question 30

An enzyme that breaks down starch into smaller unit is termed

Answer 30

an amylase