Micro Chapter 4

Front 1

Which of the following is a characteristic of bacterial microscopic
morphology?

Back 1

Gram stain reaction

Front 2

Bacteria in the phylum Firmicutes have a thick peptidoglycan cell wall and stain Gram-negative (pink).

Back 2

false

Front 3

A test for the diagnosis of Scarlet fever is the __ test.

Back 3

Schulz-Carlton

Front 4

The bacillus ___ is a component of human microbiota that is a strict anaerobe, is capable of forming endospores and causes an opportunistic disease.

Back 4

Clostridium difficile

Front 5

The bacterium __ produces exfoliative toxin, causing a disorder known as scalded skin syndrome sometimes seen in young babies.

Back 5

Staphylococcus aureus

Front 6

An inflammed throat with pustules and high fever may be the
result of infection with the bacitracin-sensitive Gram (+) coccus:

Back 6

Streptococcus pyogenes

Front 7

The ingestion of the Gram(+) coccobacillus ____results in symptoms of mild food poisoning but may cross the placenta to infect and kill the fetus.

Back 7

Listeria monocytogenes

Front 8

Which of the following structures or functions is NOT a target for antibiotics?

Back 8

capsule synthesis

Front 9

Macroscopic characteristics used to identify bacteria could also be called ___ characteristics.

Back 9

colony

Front 10

A bacterium with a thick peptidoglycan layer is Gram- __ and stains __ in the Gram stain procedure.

Back 10

positive, purple

Front 11

Which of the following is a microscopic bacterial characteristic?

Back 11

coccus

Front 12

The bacterial virulence factor responsible for the signs and symptoms of Scalded Skin Syndrome is

Back 12

exfoliative toxin.

Front 13

Production of a greenish zone around colonies on blood agar plates is called __ hemolysis.

Back 13

Alpha

Front 14

Which of the following diagnostic tests detects the presence of a virulence factor

Back 14

ASO test B) Quellung test. C) Schick test.
D) Schultz-Carlton test E) All of these.

Front 15

Implanted medical devices such as pacemakers may pose a risk due to the presence of:

Back 15

biofilm

Front 16

Bacteria that are facultative anaerobes can live

Back 16

in the presence or absence of oxygen

Front 17

. The beta-hemolytic, bacitracin-sensitive Gram-positive coccus ___ grows in chains, and causes Rheumatic Fever.

Back 17

Streptococcus pyogenes

Front 18

Eating canned food in which the anaerobic bacillus __ has been growing may result in paralysis of muscles of the face and neck due to the action of the toxin the bacterium produces.

Back 18

Clostridium botulinum

Front 19

Inhalation of the endospores of the aerobic Gram-positive bacillus ___ initially produces pneumonia-like symptoms, but the toxins it produces damage capillaries, resulting in respiratory or cardiovascular collapse.

Back 19

Bacillus anthracis

Front 20

Exposure of newborns to a vagina infected with the Gram-positive beta-hemolytic coccus ___ may result in neonatal meningitis.

Back 20

Streptococcus agalactiae

Front 21

The anaerobic endospore-forming bacillus ___ is part of the normal intestinal microbiota but may cause opportunistic disease when other intestinal bacteria are depleted by antibiotics.

Back 21

Clostridium difficile

Front 22

. Ingestion of ___ results in mild food poisoning (gastroenteritis) with cramps and nausea or diarrhea or both.

Back 22

Bacillus cereus Clostridium perfringens Staphylococcus aureus

Front 23

The filamentous, acid-fast bacillus ___ is spread by aerosols and lives in macrophages of the lungs, leading to slow progressive lung damage resulting in respiratory failure.

Back 23

Mycobacterium tuberculosis

Front 24

Opportunistic infection of puncture wounds by the Gram-positive anaerobic bacillus __ can result in gas pockets and necrosis in the tissues (gas gangrene).

Back 24

Streptomyces

Front 25

Consuming dairy products contaminated with the cold-tolerant Gram-positive coccobacillus ___ may result in mild illness in most people, but can result in stillbirth if contracted during pregnancy.

Back 25

Listeria monocytogenes

Front 26

Furuncles (boils) and carbuncles are pus-filled infections with Gram-positive non-hemolytic coccus __, which is part of the normal microbiota of the skin.

Back 26

Staphylococcus epidermidis

Front 27

An increasing number of antibiotic-resistant nosocomial infections are the result of fecal contamination containing the non-hemolytic Gram-positive diplococcus:

Back 27

Enterococcus faecalis.

Front 28

. Bacterial pneumonia in the elderly is commonly caused by the Gram-positive, alpha-hemolytic, Quellung-positive coccus:

Back 28

Streptococcus pneumoniae

Front 29

Bacillus

Back 29

Anthrax

Front 30

Clostridium

Back 30

Neonatal tetanus

Front 31

Mycobacterium

Back 31

Hansen’s disease

Front 32

Staphylococcus

Back 32

Impetigo

Front 33

Streptococcus

Back 33

Scarlet fever

Front 34

Which of the following is a systemic disease caused by toxins produced by Staphylococcus aureus?

Back 34

toxic shock syndrome

Front 35

The form of leprosy associated with severe disfigurement of the extremities is __ leprosy.

Back 35

lepromatous

Front 36

Superficial infections with the aerobic non-motile Gram-positive bacillus __ result in a black lesion which eventually heals, leaving a scar, but gastrointestinal infections are life-threatening.

Back 36

Bacillus anthracis

Front 37

Dr. Semmelweis introduced handwashing in an effort to reduce postpartum sepsis, an infection of the reproductive tract and pelvic cavity by the hemolytic Gram-positive coccus:

Back 37

Bacillus subtilis.

Front 38

. The bacterium responsible for creating the biofilm known as dental plaque is the Gram-positive alpha-hemolytic coccus:

Back 38

Streptococcus mutans.

Front 39

The anaerobic Gram-positive endospore-forming bacillus ___ can establish opportunistic infections of wounds and produces a toxin that causes potentially fatal muscle spasms.

Back 39

Clostridium tetani

Front 40

Infection with the acid-fast filamentous bacillus __ may cause damage to skin and nerves of the extremities (fingers, nose, etc.) over the course of years to decades.

Back 40

Mycobacterium leprae

Front 41

A leading cause of otitis media is the Gram-positive diplococcus:

Back 41

Streptococcus pneumoniae.

Front 42

___ is a Gram-positive filamentous bacillus that is part of the microbiota, but will grow in painful necrotic masses if a puncture wound inoculates it beneath mucous membranes.

Back 42

Actinomyces

Front 43

Which of the following is an intoxication disease?

Back 43

botulism

Front 44

Which of the following causes opportunistic infections with symptoms much like tuberculosis in immunocompromised persons?

Back 44

Mycobacterium avium

Front 45

Which of the following is contracted primarily by contact?

Back 45

impetigo

Front 46

Which of the following Bacillus species produces an antibiotic?

Back 46

B. polymyxa
B. subtilis

Front 47

The disorder ___ is a potentially serious complication of strep infections.

Back 47

glomerulonephritis

Front 48

True or False. Standard cooking times and temperatures are sufficient to destroy bacterial endospores.

Back 48

False

Front 49

Bacteria in the genus ___ can tolerate wide ranges of pH, salt concentration, temperature and oxygen levels.

Back 49

Staphylococcus

Front 50

of the following diseases cannot be prevented by vaccination?

Back 50

leprosy
toxic shock syndrome

Front 51

The toxin produced by Clostridium __ can be used to treat various disorders

Back 51

botulinum

Front 52

Members of the __ are called “acid-fast” bacteria due to their resistance to Gram staining and acids

Back 52

Mycobacteria

Front 53

development of antibiotic resistance is a serious and growing problem with infections with

Back 53

Mycobacterium tuberculosis
Staphylococcus aureus

Front 54

Use of herbal or cosmetic remedies applied to the navel to try to hasten healing has resulted in newborns contracting:

Back 54

neonatal meningitis.

Front 55

Which of the following bacteria is/are part of the normal human microbiota?

Back 55

Clostridium difficle Lactobacillus C) Staphylococcus epidermidis
D) Actinomyces E) All of these are.

Front 56

The filamentous Gram-positive bacillus ___ of the phylum Actinobacteria is the source of a wide variety of antibiotics.

Back 56

Streptomyces

Front 57

Polymerase Chain Reaction (PCR) is an identification method which detects the __ of a microbe.

Back 57

cell wall structure

Front 58

Which of the following bacterial metabolic activities are targets for antibiotics?

Back 58

cell wall synthesis B) DNA synthesis C) protein synthesis
D) folic acid synthesis E) All of these are.

Front 59

The disease known as __________ results when babies ingest endospores contaminating honey and other food items and the bacteria establish an infracton in the intestines

Back 59

Floppy baby syndrome

Front 60

which of the following is a zoonosis?
Actinomucosis
anthrax
botulism
leprosy
pyoderma

Back 60

anthrax

Front 61

probiotics is the practice of using bacteria such as ________ to inhibit the growth of harmful microbes

Back 61

Lactobacillus

Front 62

Which of the following is not a target for antibiotic therapy?
DNA synthesis
protein synthesis
folic acid syntheses
cell wall synthesis
lipid synthesis

Back 62

lipid synthesis