Lab microbes and mediums to know

Question 1

What bacteria type is E. coli

Answer 1

gram negative cell wall

Question 2

What shape is E. coli

Answer 2

bacillus shaped

Question 3

Does E. coli fermentate

Answer 3

yes it fermentated glucose and lactose

Question 4

Is E. coli motile?

Answer 4

yes

Question 5

What bacteria type is P. fluorescens

Answer 5

gram negative cell wall

Question 6

What shape is P. fluorescens

Answer 6

bacillus shaped

Question 7

Does P. fluorescens fermentate

Answer 7

no

Question 8

Does P. fluorescens have the ability to be motile

Answer 8

yes flagellum for mobility

Question 9

Where was their growth in the test tube for P. fluorescens, what type of oxygen relationship

Answer 9

Growth at the top; obligate aerobe

Question 10

What type of oxygen relationship is E. Coli

Answer 10

facultative anaerobic bacterium

Question 11

What type of bacteria is B. cereus

Answer 11

Gram positive

Question 12

What shape is B. cereus

Answer 12

bacillus shaped

Question 13

Is B. cereus motile

Answer 13

yes

Question 14

What type of oxygen relationship does B. cereus have

Answer 14

aerobic or facultatively anaerobic

Question 15

Does B. cereus fermented lactose and glucose

Answer 15

yes

Question 16

Is S. Cerevisiae a bacteria

Answer 16

no–chitin cell wall

Question 17

What type of shape is S. Cerevisiae

Answer 17

ovoid-shape

Question 18

What type of growth was seen in the thioglycolate of E. faecalis; what’s its oxygen relationship

Answer 18

growth throughout; facultative anaerobe

Question 19

What was seen in the thioglycolate of S. marcescens; what’s its oxygen relationship

Answer 19

Cloudy throughout with dark red at the top; facultatively anaerobe

Question 20

What type of bacteria is S. epidermidis

Answer 20

gram positive

Question 21

What shape is S. epidermidis

Answer 21

coccus

Question 22

Is S. epidermidis + for glucose fermentation

Answer 22

yes

Question 23

Is S. epidermidis motile

Answer 23

yes

Question 24

What type of medium is nutrient broth/NA

Answer 24

all purpose medium

Question 25

What type of medium is MAC

Answer 25

selective and differential medium (for gram negative bacteria)

Question 26

What will MAC look like if fermentation occurs after 24 hours of incubation

Answer 26

red colonies

Question 27

What type of medium is APT w/ tween

Answer 27

non selective (typically fastidious bacteria)

Question 28

What are the differential ingredients in MAC

Answer 28

lactose
neutral red

Question 29

What are the selective ingredients in MAC

Answer 29

bile salts
Crystal violet

Question 30

What is the selective ingredient in APT w/ tween

Answer 30

sodium azide

Question 31

What can thioglycolate help determine

Answer 31

obligate anaerobes

Question 32

What type of medium is thioglycolate

Answer 32

differentail

Question 33

What type of medium is fermenting broth

Answer 33

differential medium for fermentation

Question 34

What color will carbone fermentation broth turn if fermentation has occured

Answer 34

yellow due to the bromcresol purple

Question 35

What type of medium is EMB

Answer 35

selective and differential

Question 36

What is the selective ingredient for EMB

Answer 36

Esoin Y and Methylene blue dyes

Question 37

What is the differential ingredient for EMB

Answer 37

lactose