Cell Biology

Which of the following intestinal protozoa has no cyst stage, ranges from 9 to 12 m in diameter, and ...

Which of the following intestinal protozoa has no cyst stage, ranges from 9 to 12 m in diameter, and ...

Which of the following intestinal protozoa has no cyst stage, ranges from 9 to 12 m in diameter, and has two nuclei in 60 of clinical specimens?
 
  a. Giardia duodenalis
  b. Chilomastix mesnili
  c. Dientamoeba fragilis
 

boobear86   53   2 Replies

boobear86

A 76-year-old man attends a meeting at his condominium association where many of his neighbors are ...

A 76-year-old man attends a meeting at his condominium association where many of his neighbors are ...

A 76-year-old man attends a meeting at his condominium association where many of his neighbors are sick with respiratory symptoms. He later develops a Haemophilus influenzae in-fection, which is classified as a _________ infection.
 
  a.

timothyy5   75   2 Replies

timothyy5

The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is ...

The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is ...

The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is recovered from fecal specimens and has also been implicated in traveler's diarrhea. The drug of choice to treat infection caused by C. belli is:
 

123123456   36   2 Replies

123123456

Which of the following opportunistic organisms is associated with slowly progressive subacute ...

Which of the following opportunistic organisms is associated with slowly progressive subacute ...

Which of the following opportunistic organisms is associated with slowly progressive subacute bacterial endocarditis?
 
  a. H. ducreyi
  b. H. influenzae
  c. Aggregatibacter aphrophilus
  d. H. parahaemolyticus

seterria   21   2 Replies

seterria

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ...

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ...

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ticks is caused by:
 
  a. Leptospira interrogans.
  b. Borrelia burgdorferi.
  c. Treponema carateum.
  d. Rickettsia ricket

avaggp   50   2 Replies

avaggp

The most frequent cause of uncomplicated community-acquired urinary tract infections is:

The most frequent cause of uncomplicated community-acquired urinary tract infections is:

The most frequent cause of uncomplicated community-acquired urinary tract infections is:
 
  a. S. saprophyticus.
  b. Klebsiella spp.
  c. E. coli.
  d. Proteus.


The permanent stained smear protocol of the O&

Amunoz0512   57   2 Replies

Amunoz0512

The natural habitat of Mycoplasma spp., which causes infectious disease in humans, can best be ...

The natural habitat of Mycoplasma spp., which causes infectious disease in humans, can best be ...

The natural habitat of Mycoplasma spp., which causes infectious disease in humans, can best be described as the:
 
  a. mucous membranes of humans.
  b. aquatic environment.
  c. natural environment.
  d. genitourinary tract

Angellady   34   2 Replies

Angellady

A modified acid-fast stain is performed on lung tissue. The most likely organism that will be ...

A modified acid-fast stain is performed on lung tissue. The most likely organism that will be ...

A modified acid-fast stain is performed on lung tissue. The most likely organism that will be observed is:
 
  a. N. fowleri.
  b. Mansonella streptocerca.
  c. G. lamblia.
  d. Cryptosporidium spp.


An accepta

bradenodom_3   52   2 Replies

bradenodom_3

One of the most important uses of the Gram stain of expectorated sputum received for routine ...

One of the most important uses of the Gram stain of expectorated sputum received for routine ...

One of the most important uses of the Gram stain of expectorated sputum received for routine bacteriologic culture is to:
 
  a. give the physician a quick analysis of the type of organism causing the infection.
  b. evaluate the qual

Leahlaibe   47   2 Replies

Leahlaibe

The species of Moraxella that is most commonly associated with human infections, primarily of the ...

The species of Moraxella that is most commonly associated with human infections, primarily of the ...

The species of Moraxella that is most commonly associated with human infections, primarily of the respiratory tract, is:
 
  a. M. catarrhalis.
  b. Moraxella lacunata.
  c. Moraxella canis.
  d. Moraxella atlantae.

[

Tamera   29   2 Replies

Tamera

The term acute urethral syndrome is used to describe a syndrome of symptoms that include:

The term acute urethral syndrome is used to describe a syndrome of symptoms that include:

The term acute urethral syndrome is used to describe a syndrome of symptoms that include:
 
  a. greater than 105 colony-forming units of bacteria per milliliter (CFU/mL) of urine, dysuria, and frequent urination.
  b. dysuria, freque

Sonikapardal   59   2 Replies

Sonikapardal

M. catarrhalis may be described as:

M. catarrhalis may be described as:

M. catarrhalis may be described as:
 
  a. oxidase-positive.
  b. a glucose utilizer.
  c. a major cause of venereal disease.
  d. often carrying an antiphagocytic capsule.


Which type of assay uses a variety o

gk.forest   42   2 Replies

gk.forest

An organism that many women carry as part of their normal genital microbial flora that may be ...

An organism that many women carry as part of their normal genital microbial flora that may be ...

An organism that many women carry as part of their normal genital microbial flora that may be transmitted to the neonate during childbirth is:
 
  a. Staphylococcus.
  b. Escherichia coli.
  c. S. agalactiae.
  d. G. vaginal

ddbeaumont15   45   2 Replies

ddbeaumont15

A phenotypic technique that examines the ability of bacteriophages, which are viruses capable of ...

A phenotypic technique that examines the ability of bacteriophages, which are viruses capable of ...

A phenotypic technique that examines the ability of bacteriophages, which are viruses capable of infecting and lysing bacterial cells, to attack certain strains is:
 
  a. biotyping.
  b. antibiograms.
  c. bacteriocin typing.

SpicyBoi   43   2 Replies

SpicyBoi

An organism that causes infection as a result of a dog or cat bite was tested for catalase, ...

An organism that causes infection as a result of a dog or cat bite was tested for catalase, ...

An organism that causes infection as a result of a dog or cat bite was tested for catalase, resulting in a positive reaction. What could be the possible source of the error?
 
  a. The catalase reagent could be expired.
  b. This orga

Crow99   36   2 Replies

Crow99

To test the validity of catalase reagent, which two organisms should be used?

To test the validity of catalase reagent, which two organisms should be used?

To test the validity of catalase reagent, which two organisms should be used?
 
  a. A. actinomycetemcomitans and Kingella kingae
  b. C. hominis and A. aphrophilus
  c. K. denitrificans and K. kingae
  d. Actinobacillus sui

LMD   18   2 Replies

LMD

The definitive identification of which of the following organisms is accomplished by hemad-sorption ...

The definitive identification of which of the following organisms is accomplished by hemad-sorption ...

The definitive identification of which of the following organisms is accomplished by hemad-sorption techniques?
 
  a. Chlamydia trachomatis
  b. Mycoplasma hominis
  c. Mycoplasma pneumoniae
  d. Mycoplasma genitalium
[b

ddbeaumont15   29   2 Replies

ddbeaumont15

The most common portal of entry for bacteremia is:

The most common portal of entry for bacteremia is:

The most common portal of entry for bacteremia is:
 
  a. the genitourinary tract.
  b. the respiratory tract.
  c. an abscess.
  d. the biliary tract.


The laboratory method of choice to identify Mycoplasma an

vanpac   42   2 Replies

vanpac

P. vivax is suspected in a patient who has been traveling for months in the tropics. Blood was ...

P. vivax is suspected in a patient who has been traveling for months in the tropics. Blood was ...

P. vivax is suspected in a patient who has been traveling for months in the tropics. Blood was collected in a lavender top tube; however, the slide was not prepared for examination until the next day because the specimen came in on the night shift. O

vankor   17   2 Replies

vankor

A stage of venereal syphilis, characterized by tissue destruction, central nervous system disease, ...

A stage of venereal syphilis, characterized by tissue destruction, central nervous system disease, ...

A stage of venereal syphilis, characterized by tissue destruction, central nervous system disease, cardiovascular abnormalities, eye disease, and granuloma-like lesions, is known as ________ syphilis.
 
  a. primary
  b. secondary

Samantha1124   40   2 Replies

Samantha1124

Direct penetration of which of the following worms results in tissue damage at the site of ...

Direct penetration of which of the following worms results in tissue damage at the site of ...

Direct penetration of which of the following worms results in tissue damage at the site of attachment, blood loss, and an acute gastrointestinal phase demonstrated by an increased eosi-nophilia?
 
  a. Whipworm
  b. Pinworm
  c.

Tamera   30   2 Replies

Tamera

The mode of infection for which of the following organisms is the ingestion of cysticercoid in an ...

The mode of infection for which of the following organisms is the ingestion of cysticercoid in an ...

The mode of infection for which of the following organisms is the ingestion of cysticercoid in an infected arthropod or by the direct ingestion of the egg? Autoinfection may also occur.
 
  a. D. latum
  b. Hymenolepis nana
  c.

Sqwill23   49   2 Replies

Sqwill23

If a fungal colony is described as rugose, then it means that the colony:

If a fungal colony is described as rugose, then it means that the colony:

If a fungal colony is described as rugose, then it means that the colony:
 
  a. is furrowed or convoluted.
  b. is slightly raised in the center.
  c. furrows radiate out from the center.
  d. has a smooth surface with no a

zariacofer9   39   2 Replies

zariacofer9

XLD agar serves which purpose when used in the bacterial fecal culture?

XLD agar serves which purpose when used in the bacterial fecal culture?

XLD agar serves which purpose when used in the bacterial fecal culture?
 
  a. Evaluation of general flora and predomi-nant species
  b. Selection of enteric pathogens such as Salmonella, Aeromonas, and others
  c. Inhibition of

daisy1234567   32   2 Replies

daisy1234567

The sputum of a patient with acquired immunodeficiency syndrome (AIDS) is stained with Kinyoun's ...

The sputum of a patient with acquired immunodeficiency syndrome (AIDS) is stained with Kinyoun's ...

The sputum of a patient with acquired immunodeficiency syndrome (AIDS) is stained with Kinyoun's carbolfuchsin stain. Which organism would test positive using this stain?
 
  a. Streptomyces spp.
  b. Pneumocystis jiroveci
  c. S

boobear86   36   2 Replies

boobear86

The flora of the female genital tract:

The flora of the female genital tract:

The flora of the female genital tract:
 
  a. consists primarily of staphylococci, cory-nebacteria, and Neisseria.
  b. consists primarily of Enterobacteriaceae, streptococci, and staphylococci.
  c. consists primarily of S. agal

LMD   24   2 Replies

LMD

The microbes commonly known as ________ are single-celled eukaryotes that are generally motile. ...

The microbes commonly known as ________ are single-celled eukaryotes that are generally motile. ...

The microbes commonly known as ________ are single-celled eukaryotes that are generally motile.
 
  A) archaea
  B) bacteria
  C) fungi
  D) protozoa
  E) viruses


Antoni van Leeuwenhoek was the first pers

callie   39   2 Replies

callie

Which of the following statements about fungi is FALSE?

Which of the following statements about fungi is FALSE?

Which of the following statements about fungi is FALSE?
 
  A) Fungi are eukaryotes.
  B) Molds are multicellular.
  C) Fungi have a cell wall.
  D) Fungi are photosynthetic.
  E) Yeasts are unicellular.

phd1100   64   2 Replies

phd1100

Inserting a gene from the hepatitis B virus into yeast so that the yeast produces a viral protein is ...

Inserting a gene from the hepatitis B virus into yeast so that the yeast produces a viral protein is ...

Inserting a gene from the hepatitis B virus into yeast so that the yeast produces a viral protein is an example of
 
  A) etiology.
  B) genetic engineering.
  C) immunology.
  D) microbial genetics.
  E) gene therapy.[

SpicyBoi   70   2 Replies

SpicyBoi

What was the first disease shown to be bacterial in origin?

What was the first disease shown to be bacterial in origin?

What was the first disease shown to be bacterial in origin?
 
  A) yellow fever
  B) cholera
  C) anthrax
  D) malaria
  E) tuberculosis


Which of the following is an INCORRECT pairing?
 
  A) p

Missmina01   29   2 Replies

Missmina01

The term that literally means against putrefaction is :

The term that literally means against putrefaction is :

The term that literally means against putrefaction is
 
  A) antisepsis.
  B) prokaryote.
  C) chemotherapy.
  D) recombinant technology.
  E) nosocomial.


Microorganisms characterized by the absence of a

callie   34   2 Replies

callie

Fermentation can occur in the absence of living cells. (True or false?)

Fermentation can occur in the absence of living cells. (True or false?)

Fermentation can occur in the absence of living cells.
 
  Indicate whether the statement is true or false


Robert Koch sought a magic bullet for the treatment of disease caused by bacteria.
 
  Indicate whether th

asimpson77   68   2 Replies

asimpson77

Microbes that cause infectious disease are called (pathogens/germs/viruses). What will be an ...

Microbes that cause infectious disease are called (pathogens/germs/viruses). What will be an ...

Microbes that cause infectious disease are called (pathogens/germs/viruses).
 
  What will be an ideal response?


A(n) (photosynthetic/algae/plant) organism makes its own food using light energy.
 
  What will be a

Tamera   65   2 Replies

Tamera

Using a microscope, you observe an amoeba moving toward a food source. This is an example of :

Using a microscope, you observe an amoeba moving toward a food source. This is an example of :

Using a microscope, you observe an amoeba moving toward a food source. This is an example of
 
  A) reproduction.
  B) cellular structure.
  C) metabolism.
  D) growth.
  E) responsiveness.


Research done

phd1100   83   2 Replies

phd1100

You are a young scientist who has just learned about one of the hot topics in microbiology, ...

You are a young scientist who has just learned about one of the hot topics in microbiology, ...

You are a young scientist who has just learned about one of the hot topics in microbiology, biofilms. One aspect of the interest in biofilms is that the microbes living within biofilms appear to behave and function differently from their counterparts

bradenodom_3   30   2 Replies

bradenodom_3

Bacterial cell walls that are resistant to drying contain :

Bacterial cell walls that are resistant to drying contain :

Bacterial cell walls that are resistant to drying contain
 
  A) carbohydrates.
  B) amino acids.
  C) lipopolysaccharide.
  D) tubulin.
  E) waxes.


Use the basic steps of the scientific method to describ

sswise1   24   2 Replies

sswise1

Which of the following does not contribute significantly to the mass of an atom?

Which of the following does not contribute significantly to the mass of an atom?

Which of the following does not contribute significantly to the mass of an atom?
 
  A) electron
  B) neutron
  C) element
  D) proton
  E) isotope


Bacteria of the genus Mycoplasma lack cell walls. What s

ddbeaumont15   41   2 Replies

ddbeaumont15

Which of the following is NOT a characteristic of saturated fats?

Which of the following is NOT a characteristic of saturated fats?

Which of the following is NOT a characteristic of saturated fats?
 
  A) They are usually solid at room temperature.
  B) They contain at least one double bond.
  C) They are found in animals.
  D) Their fatty acids pack tig

ferry_L   34   2 Replies

ferry_L

The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an ...

The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an ...

The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an example of
 
  A) facilitated diffusion.
  B) group translocation.
  C) osmosis.
  D) plasmolysis.
  E) diffusion.

Jjmcadoo   47   2 Replies

Jjmcadoo

Which of the following is found in nucleic acids?

Which of the following is found in nucleic acids?

Which of the following is found in nucleic acids?
 
  A) amines
  B) carboxylic acid
  C) purines
  D) glycerol
  E) R group


The cytoplasmic membranes of ________ contain unbranched phospholipids and prot

hobbydog25   47   2 Replies

hobbydog25