(4)

Question 1

a microbial culture consisting of two or more species

Answer 1

mixed culture

Question 2

a microbial culture consisting of two or more species

Answer 2

mixed culture

Question 3

a microbial culture consisting of two or more species

Answer 3

mixed culture

Question 4

contains only a single species

Answer 4

pure culture

Question 5

a commonly used isolation technique where a bacterial sample is streaked over the surface of a plated agar medium. Designed to separate deposited cells (CFU’s) on the agar surface so individual cells (CFU’s) grow into isolated colonies. Generally used with samples suspected of high cell intensity.

Answer 5

quadrant streak plate

Question 6

the cell or group of cells that produces a colony when transferred to plated media

Answer 6

colony-forming unit (CFU)

Question 7

growth that is dense(tightly packed & thick) and opaque(not shiny) with a smooth edge

Answer 7

filiform

Question 8

color

Answer 8

pigmented

Question 9

crusty

Answer 9

friable

Question 10

membrane growth on top(surface)

Answer 10

pellicle

Question 11

growth on the bottom (could be flocculent that have settled because test tubes have been sitting)

Answer 11

sediment

Question 12

suspended chunks

Answer 12

flocculent

Question 13

What is the purpose of a four-quadrant streak?

Answer 13

To separate colonies

Question 14

How does one bacterial cell relate to a bacterial colony?

Answer 14

When a single bacterial cell is deposited on a solid nutrient medium, it begins to divide. One cell makes two, two make four, four make eight and so on… Eventually a visible mass of cells - a colony - appears where the original cell was deposited.

Question 15

contains only a single species

Answer 15

pure culture

Question 16

a commonly used isolation technique where a bacterial sample is streaked over the surface of a plated agar medium. Designed to separate deposited cells (CFU’s) on the agar surface so individual cells (CFU’s) grow into isolated colonies. Generally used with samples suspected of high cell intensity.

Answer 16

quadrant streak plate

Question 17

the cell or group of cells that produces a colony when transferred to plated media

Answer 17

colony-forming unit (CFU)

Question 18

growth that is dense(tightly packed & thick) and opaque(not shiny) with a smooth edge

Answer 18

filiform

Question 19

color

Answer 19

pigmented

Question 20

crusty

Answer 20

friable

Question 21

membrane growth on top(surface)

Answer 21

pellicle

Question 22

growth on the bottom (could be flocculent that have settled because test tubes have been sitting)

Answer 22

sediment

Question 23

suspended chunks

Answer 23

flocculent

Question 24

What is the purpose of a four-quadrant streak?

Answer 24

To separate colonies

Question 25

How does one bacterial cell relate to a bacterial colony?

Answer 25

When a single bacterial cell is deposited on a solid nutrient medium, it begins to divide. One cell makes two, two make four, four make eight and so on… Eventually a visible mass of cells - a colony - appears where the original cell was deposited.

Question 26

contains only a single species

Answer 26

pure culture

Question 27

a commonly used isolation technique where a bacterial sample is streaked over the surface of a plated agar medium. Designed to separate deposited cells (CFU’s) on the agar surface so individual cells (CFU’s) grow into isolated colonies. Generally used with samples suspected of high cell intensity.

Answer 27

quadrant streak plate

Question 28

the cell or group of cells that produces a colony when transferred to plated media

Answer 28

colony-forming unit (CFU)

Question 29

growth that is dense(tightly packed & thick) and opaque(not shiny) with a smooth edge

Answer 29

filiform

Question 30

color

Answer 30

pigmented

Question 31

crusty

Answer 31

friable

Question 32

membrane growth on top(surface)

Answer 32

pellicle

Question 33

growth on the bottom (could be flocculent that have settled because test tubes have been sitting)

Answer 33

sediment

Question 34

suspended chunks

Answer 34

flocculent

Question 35

What is the purpose of a four-quadrant streak?

Answer 35

To separate colonies

Question 36

How does one bacterial cell relate to a bacterial colony?

Answer 36

When a single bacterial cell is deposited on a solid nutrient medium, it begins to divide. One cell makes two, two make four, four make eight and so on… Eventually a visible mass of cells - a colony - appears where the original cell was deposited.