L3

Question 1

Generation time of bacteria

Answer 1

20 minutes to 24 hours

Question 2

Mycobacterium tuberculosis take how many time

Answer 2

24 hours

Question 3

pH of culture medium

Answer 3

6 - 8

Question 4

Require Organic compounds as source of energy as: (carbohydrates,
lipids, proteins

Answer 4

Heterotrophic bacteria

Question 5

Utilize simple Inorganic compounds as source of energy such as:
( Carbon - CO2, carbonates; N - ammonia, nitrates).

Answer 5

Autotrophic bacteria

Question 6

Capnophilic bacteria

Answer 6

need high concentrations of carbon dioxide (CO2) -((Campylobacter))

Question 7

Obligate (strict) aerobe

Answer 7

Pseudomonas

Question 8

Facultative anaerobe

Answer 8

Escherichia coli

Question 9

Obligate anaerobe

Answer 9

Clostridium species

Question 10

Aerotolerant anaerobe

Answer 10

Streptococcus pyogenes

Question 11

Microaerophile

Answer 11

Campylobacter species

Question 12

Microaerophile & Capnophilic

Answer 12

Campylobacter

Question 13

require special nutrients supplied in culture medium

Answer 13

Fastidious organisms

Question 14

Non cultivable bacteria

Answer 14

Mycobacterium leprae (leprosy) & Treponema pallidum

Question 15

intracellular organisms

Answer 15

Chlamydia and Rickettsia

Question 16

lquid like water without agar

Answer 16

broth

Question 17

2% of agar to

Answer 17

solidify media

Question 18

• 6% agar to

Answer 18

inhibit motility of proteus

Question 19

visible mass of bacterial cells derived from a single parental cell

Answer 19

colony

Question 20

The major mechanisms for generating metabolic energy are

Answer 20

fermentation
and respiration

Question 21

The Embden-Meyerhof, Entner-Doudoroff, and hetero lactate
pathways are three pathways used for

Answer 21

glucose catabolism in bacteria

Question 22

Carrier state: person harbors, asymptomatic and
transmits to others e.g

Answer 22

. Typhoid bacilli

Question 23

Chronic carrier

Answer 23

HBV