Microorganism in the Environment

Question 1

Bacteria reproduce by splitting into two is known as

Answer 1

binary fission

Question 2

one kind of bacteria in a culture media

Answer 2

pure culture

Question 3

culture media selective to grow specific organism

Answer 3

selective media

Question 4

indicators that they are producing acids/alkalines

Answer 4

dyes

Question 5

is useful in isolation and differentiation of the various gram-negative bacilli and enteric bacilli, generally known as coliforms and fecal coliforms respectively.

Answer 5

acyl methylene blue agar

Question 6

Invasion of a host by a microorganism with subsequent establishment and multiplication of the agent.

Answer 6

infection

Question 7

accidental transfers of organisms from one natural environment to another.

Answer 7

contamination

Question 8

Sources of infectious agents / contaminants are humans, animals and non-living materials.

Answer 8

contamination

Question 9

is an individual mass of bacterial growth on the surface of the agar.

Answer 9

colony

Question 10

All the bacteria in a ____came from one single bacteria, and thus all are identical to one another.

Answer 10

colony

Question 11

when grown on a medium, shows specific growth appearance or characteristics.

Answer 11

bacterium

Question 12

It varies with the type of agar/broth medium, nutrients, and dyes present in the medium

Answer 12

colony

Question 13

different forms of bacteria

Answer 13

punctiform
circular
irregular
filamentous
rhizodal

Question 14

identify different forms of bacteria

Answer 14

+1

Question 15

margins of bacteria

Answer 15

entire
lobate
filamentous
curled
undulate

Question 16

identify margins of bacteria

Answer 16

+1

Question 17

elevation of colony

Answer 17

flat
raise
convex
umbunate
crateriform
pulvinate

Question 18

identify elevation of colony

Answer 18

+1

Question 19

surface of colony

Answer 19

smooth
concentric
contoured
wrinkled

Question 20

identify surface of colony

Answer 20

+1

Question 21

pigmentation can be

Answer 21

pigmented
nonpigmented

Question 22

optical features of colony

Answer 22

transparent
opaque
translucent
opalescent

Question 23

consistency of colony

Answer 23

dry
brittle
buttery/butyrous
viscid/muscoid

Question 24

The most rapid cell growth occurs at the colony ___ where larger amount of required resources are available

Answer 24

edge

Question 25

Growth is much slower in the ___, and cell autolysis takes place in the older central portions of some colonies

Answer 25

center

Question 26

takes place in the older central portions of some colonies.

Answer 26

cell autolysis

Question 27

bacillus subtilis development identify

Answer 27

+1

Question 28

Staphylococcus aureus

Answer 28

+1

Question 29

e coli

Answer 29

+1

Question 30

Micrococcus luteus

Answer 30

+1

Question 31

Pink color of bacteria indicates a

Answer 31

lactose fermenter

Question 32

used for the isolation of gram-negative enteric bacteria and the differentiation of lactose fermenting from lactose non- fermenting gram-negative bacteria

Answer 32

MacConkey's Agar

Question 33

s a growth media for the culturing of moderately to non fastidious bacteria

Answer 33

Trypticase Soy Agar

Question 34

pseudomonas aeruginosa

Answer 34

+1

Question 35

It is often a nosocomial pathogen, easily transmitted by hands and invasive medical procedures

Answer 35

pseudomonas aeruginosa

Question 36

Temperature-regulated phenotypic expression - the red pigment ___ is produced in response to incubation at 30o C, but do not do so at 37o C. 

Answer 36

prodigiosin

Question 37

serratia marcescens

Answer 37

+1

Question 38

the ability to cause disease.

Answer 38

pathogenicity

Question 39

The ability of an organism to invade host tissues and cause disease

Answer 39

virulence

Question 40

Colonies that are smooth and viscid due to their

Answer 40

capsules

Question 41

evade phagocytosis and therefore can wander in our body without being detected by macrophages

Answer 41

capsules

Question 42

capsule production of B. anthracis

Answer 42

poly-d-glutamate