Bacteria Unit

Question 1

The outer part of bacteria is called

Answer 1

Capsule

Question 2

Long structure used for attachments of bacteria

Answer 2

Pili

Question 3

Long structure used for movement on bacteria

Answer 3

Flagella

Question 4

During which phase does cell growth equal cell death

Answer 4

Stationary

Question 5

What are the nutrition sources for bacteria

Answer 5

Proteins minerals water and carbohydrates

Question 6

What is a plasmid

Answer 6

A circular double stranded piece of DNA

Question 7

What is binary fission

Answer 7

Process of asexual reproduction of bacteria

Question 8

What method of bacterial resistance consists of bacteria actively exporting anti microbials out of there cell

Answer 8

Efflux

Question 9

Which bacterial structure allows a bacteria to go dormant during inhospitable times, making them hard to kill during that phase

Answer 9

Endospore

Question 10

Which is a flexible and inexpensive technique used to determine antimicrobial susceptibility

Answer 10

Kirby-Bauer disc diffusion

Question 11

Which type of resistance in encoded in the bacteria DNA

Answer 11

Innate

Question 12

What stain is best to detect Intracellular bacteria

Answer 12

Giemsa

Question 13

MacConkeys agar encourages growth of which type of bacteria

Answer 13

Gram negative

Question 14

Which biochemical test should be performed on all gram positive cocci

Answer 14

Catalase

Question 15

Gram POS stains what color

Answer 15

Blue

Question 16

Gram NEG stains what color

Answer 16

Red

Question 17

Describe the cell of gram POS bacteria

Answer 17

Thick cell wall that is composed mainly of peptidoglycan and teichoic acids

Question 18

Describe the cell structure of a gram NEG bacteria

Answer 18

More complex cell wall that consists of an outer membrane and a periplasmic space containing a comparatively small amount of peptidoglycan

Question 19

The only Endospore forming species are

Answer 19

Bacillus and clostridium

Question 20

Agar that supports the growth of organisms that show hemolytic patterns. Enrichment and differentiating media type

Answer 20

Blood AGAR

Question 21

What media AGAR type encourages growth of some organisms but suppresses the growth of others

Answer 21

Selective

Question 22

What media AGAR type causes observable change in medium when a particular biochemical reaction occurs

Answer 22

Differential

Question 23

What media AGAR type encourages growth of organisms without suppression of others

Answer 23

Enrichment

Question 24

What AGAR is selective for gram negative and differentiating

Answer 24

MacConkey

Question 25

What staining method categorizes bacteria

Answer 25

Gram stain

Question 26

What stain detects mycobacterium

Answer 26

Acid fast stain

Question 27

Biochemical testing performed on all gram positive cocci and small gram positive rods bacteria that have the enzyme can breakdown hydrogen peroxide into bubbles

Answer 27

Catalase

Question 28

Biochemical testing performed on all catalase, gram positive cocci. Bacteria that have this enzyme can trigger blood to clot

Answer 28

Coagulase

Question 29

Biochemical testing performed on all gram negative rods. Used to identify bacteria that have certain enzymes

Answer 29

Oxidase

Question 30

MacConkeys agar is

Answer 30

Selective and differential

Question 31

Bacteria need the right….

Answer 31

Nutrition Temperature O2 and CO2 Living location

Question 32

What is the lag phase of bacterial growth

Answer 32

The initial period of life, incubation

Question 33

What is the exponential phase of bacterial growth

Answer 33

When cells divide by binary fission, growth

Question 34

What is the stationary phase of bacterial growth

Answer 34

Growth ceases but cells remain metabolically active and happy

Question 35

What is the decline phase of bacterial growth

Answer 35

Bacteria die

Question 36

What is a broth dilution

Answer 36

Method for determination of the minimal inhibitory concentration and the minimal Bactericidal concentration of an antibiotic for a test bacterium

Question 37

Resistance chromosomally encoded in bacteria

Answer 37

Innate resistance

Question 38

Resistance from mutation or genetic transfer in bacteria

Answer 38

Acquired resistance

Question 39

Multiple drug resistance pathogens result in

Answer 39

Drug inactivation Drug target modification Decreased Intracellular accumulation