Question 1

Which of the following statements concerning influenza is incorrect?&#10;A) The elderly and patients with chronic health problems are at greater risk for complications.&#10;B) Type C influenza is milder than the other types.&#10;C) One type of influenza mutation is called antigenic drift, which refers to an abrupt change in the virus strain.&#10;D) Several influenza pandemics have occurred in the past.

Accepted Answer

Antigenic drift refers to a gradual change in the virus strain, not an abrupt change.

Question 2

What is the name of the tiny roundworm whose female normally lays her eggs during the nighttime hours in the anal area of the human host, causing itching of this area?&#10;A) Enterobius vermicularis&#10;B) Trichomonas vaginalis&#10;C) Candida albicans&#10;D) Pediculus humanus

Accepted Answer

The description matches the life cycle and symptoms of Enterobius vermicularis, also known as the human pinworm.

Question 3

Wet mounts can be done to detect the presence of &#34;clue cells,&#34; vaginal epithelial cells covered with what organism?&#10;A) Gardnerella vaginalis&#10;B) Trichomonas vaginalis&#10;C) Neisseria gonorrhoeae&#10;D) Chlamydia trachomatis

Accepted Answer

The presence of clue cells on a wet mount is indicative of bacterial vaginosis, which is caused by Gardnerella vaginalis. Therefore, choice A is the best answer. Trichomonas vaginalis is a protozoan parasite that can also cause vaginitis but is not associated with clue cells. Neisseria gonorrhoeae and Chlamydia trachomatis are bacteria that can cause sexually transmitted infections, but they do not produce clue cells.

Question 4

Which of the following Strep organisms causes strep throat and demonstrates beta hemolysis?&#10;A) Streptococcus pneumoniae&#10;B) Streptococcus pyogenes&#10;C) Streptococcus viridans&#10;D) Streptococcus agalactiae

Accepted Answer

Streptococcus pyogenes is the organism that causes strep throat and demonstrates beta hemolysis. Streptococcus pneumoniae is also a cause of respiratory infections, but it demonstrates alpha hemolysis. Streptococcus viridans and Streptococcus agalactiae are not typically associated with strep throat.

Question 5

In the Gram stain procedure, what is the most critical differentiating step?&#10;A) Gram iodine&#10;B) Crystal violet&#10;C) Safranin&#10;D) Decolorizer

Accepted Answer

The decolorizer step is the most critical differentiating step in the Gram stain procedure. It determines whether the bacterial cells will retain the crystal violet stain (Gram-positive) or lose it and take on the safranin stain (Gram-negative). If the decolorizer is left on too long, it can cause false results by washing away the crystal violet from both Gram-positive and Gram-negative cells.

Question 6

Which of the following describes a coccus bacterium?&#10;A) An organism that can be a gently curved rod&#10;B) A rod-shaped organism&#10;C) A round organism that can be found as singles, pairs, clusters, or chains&#10;D) An organism that looks like a corkscrew or a spring

Accepted Answer

A coccus bacterium is a round organism that can be found as singles, pairs, clusters, or chains.

Question 7

A sensitivity test is done to:&#10;A) identify the organism.&#10;B) determine which antibiotics would be most effective for treating patients' bacterial infections.&#10;C) perform a colony count.&#10;D) determine whether the organism will grow anaerobically.

Accepted Answer

A sensitivity test is done to determine which antibiotics would be most effective for treating patients' bacterial infections. The test measures the effectiveness of various antibiotics against the bacteria isolated from the patient's infection. This information helps the healthcare provider to choose the most appropriate antibiotic for treatment.

Question 8

Which of the following steps are incorrect when collecting a throat culture?&#10;A) Sanitize your hands and apply gloves.&#10;B) Have the patient sit with head back.Use a sterile tongue depressor to hold down the tongue, and have the patient say &#34;Ahh.&#34;&#10;C) Rotate the swab on the back of throat in a circular motion or figure-eight pattern&#10;D) Be sure to include the teeth and the back of the tongue and place the swab in the appropriate container.

Accepted Answer

The correct procedure for collecting a throat culture involves swabbing the back of the throat, tonsils, and any inflamed or lesioned areas, avoiding contact with other parts of the mouth like the teeth and tongue to prevent contamination.

Question 9

Which of the following statements is incorrect concerning the Acceava Strep test?&#10;A) Presence of a blue test line and no pink control line is a valid positive test.&#10;B) Presence of no blue test line and a pink control line is a valid negative test.&#10;C) Presence of a blue test line and a pink control line is a valid positive test.&#10;D) Presence of no blue or pink lines is an invalid test.

Accepted Answer

For the Acceava Strep A test, a valid positive result is indicated by the presence of both a blue test line and a pink control line, not just a blue test line alone. The absence of the pink control line indicates an invalid test, regardless of the presence of the blue line.

Question 10

No growth around the &#34;A&#34; disk can be used to identify Streptococcus pyogenes.What substance is in the &#34;A&#34; disk?&#10;A) Vancomycin&#10;B) Penicillin&#10;C) Tetracycline&#10;D) Bacitracin

Accepted Answer

The substance in the "A" disk is bacitracin. No growth around the bacitracin disk can be used to identify Streptococcus pyogenes, as this bacterial species is sensitive to bacitracin. Vancomycin, penicillin, and tetracycline are not typically used for identifying Streptococcus pyogenes.

Question 11

Complications such as scarlet fever, rheumatic fever, and glomerulonephritis are found in which of the following organisms?&#10;A) Streptococcus pneumoniae&#10;B) Streptococcus viridans&#10;C) Streptococcus pyogenes&#10;D) Streptococcus agalactiae

Accepted Answer

The answer of Complications such as scarlet fever, rheumatic fever,...

Question 12

Which of the following organisms has a characteristic jerky movement? (Hint: It was seen in the microscopic urinalysis video.)&#10;A) Trichomonas vaginalis&#10;B) Gardnerella vaginalis&#10;C) Neisseria gonorrhoeae&#10;D) Chlamydia trachomatis

Accepted Answer

The answer of Which of the following organisms has a...

Question 13

Which of the following is incorrect regarding microorganisms?&#10;A) Viruses live in a host cell and are made of RNA or DNA.&#10;B) Bacteria are prokaryotic, reproduce by binary fission, and can form colonies when they multiply on culture media.&#10;C) Fungi are eukaryotic, and some are yeast, which reproduce by budding.&#10;D) Parasites can only be one-celled protozoa such as amoebae.

Accepted Answer

The answer of Which of the following is incorrect regarding...

Question 14

Which of the following statements about Neisseria gonorrhoeae is incorrect?&#10;A) This organism is transported in the Jembec transport system.&#10;B) This organism is a gram-positive bacillus.&#10;C) This organism requires a 10% carbon dioxide atmosphere for growth.&#10;D) This organism causes gonorrhea, which is a sexually transmitted disease.

Accepted Answer

The answer of Which of the following statements about Neisseria...

Question 15

In a properly performed Gram stain procedure, what color are the gram-negative organisms immediately after the decolorizing stage?&#10;A) Purple&#10;B) Pink/red&#10;C) Colorless&#10;D) Brown (iodine color)

Accepted Answer

The answer of In a properly performed Gram stain procedure,...

Question 16

Which of the following is the correct way to write the name of an organism?&#10;A) Escherichia Coli&#10;B) Escherichia coli&#10;C) escherichia Coli&#10;D) Escherichia coli

Accepted Answer

The answer of Which of the following is the correct...

Question 17

Which of the following organisms are referred to as acid-fast bacilli? (Note: They are stained with an acid-fast stain rather than the Gram stain.)&#10;A) Mycobacterium tuberculosis&#10;B) Escherichia coli&#10;C) Streptococcus pneumoniae&#10;D) Neisseria gonorrhoeae

Accepted Answer

The answer of Which of the following organisms are referred...

Question 18

Which of the following statements is incorrect concerning influenza testing?&#10;A) The specimen for testing influenza is usually a nasal swab or nasal wash.&#10;B) The influenza test strips usually test for influenza A, B, and C.&#10;C) Presence of a blue test line in A and a pink control line is a valid positive test for influenza type A.&#10;D) Presence of a blue test line in B and a pink control line is a valid positive test for influenza type B.

Accepted Answer

The answer of Which of the following statements is incorrect...

Question 19

When collecting microbiologic specimens, medical professionals must strive to prevent the spread of infection to others or to themselves.Which of the following precautions is incorrect?&#10;A) Wear the appropriate personal protection devices.&#10;B) Disinfect specimen containers before collection.&#10;C) Put the specimens in transport bags after collection.&#10;D) Wash your hands after specimen collection.

Accepted Answer

The answer of When collecting microbiologic specimens, medical professionals must...

Question 20

Which of the following represents incomplete hemolysis, producing a green halo around the colony?&#10;A) Alpha&#10;B) Beta&#10;C) Gamma&#10;D) Delta

Accepted Answer

The answer of Which of the following represents incomplete hemolysis,...

Question 21

Which of the following organisms could be an occupational hazard for those who work with contaminated wool and inhale the spores (&#34;woolsorter's disease&#34;) and could also be a bioterrorism weapon?&#10;A) Bacillus anthracis&#10;B) Yersinia pestis&#10;C) Francisella tularensis&#10;D) Clostridium botulinum

Accepted Answer

The answer of Which of the following organisms could be...

Question 22

A visible mass of bacteria formed on a culture medium by one bacterium growing and replicating is a(n) ____________________.

Accepted Answer

The answer of A visible mass of bacteria formed on...

Question 23

A(n) _______________ contains medium in which to grow microorganisms.

Accepted Answer

The answer of A(n) _______________ contains medium in which to...

Question 24

A disease state that occurs when pathogenic microorganisms invade the body and overcome its natural defense mechanisms is a(n) ____________________.

Accepted Answer

The answer of A disease state that occurs when pathogenic...

Question 25

Gelatinous substance obtained from seaweed that is liquid when heated and solid when cooled and used in culture media is ____________________.

Accepted Answer

The answer of Gelatinous substance obtained from seaweed that is...

Question 26

Which of the following organisms produces a neurotoxin, the most poisonous natural substance known, which causes dry mouth, dilated pupils, and a progressive muscle weakness that leads to respiratory failure and death?

A) Bacillus anthracis
B) Clostridium botulinum
C) Francisella tularensis
D) Variola major

Accepted Answer

The answer of Which of the following organisms produces a...

Question 27

Which of the following is the causative agent of the plague?&#10;A) Bacillus anthracis&#10;B) Yersinia pestis&#10;C) Francisella tularensis&#10;D) Clostridium botulinum

Accepted Answer

The answer of Which of the following is the causative...

Question 28

Which of the following is an incorrect association?&#10;A) Enterobius vermicularis/pinworms&#10;B) Giardia lamblia/protozoan flagellate that causes gastrointestinal symptoms&#10;C) Pediculus humanus/body louse&#10;D) Trichomonas vaginalis/roundworm

Accepted Answer

The answer of Which of the following is an incorrect...

Question 29

_____________ is a component made of polysaccharides and peptides that gives rigidity to the bacterial cell wall.

Accepted Answer

The answer of _____________ is a component made of polysaccharides...

Question 30

Which of the following emerging infectious diseases is an acute respiratory illness that was recently reported as pandemic?&#10;A) Hemolytic uremic syndrome&#10;B) H1N1 swine flu virus&#10;C) Ebola&#10;D) HIV/AIDS

Accepted Answer

The answer of Which of the following emerging infectious diseases...

Question 31

__________ are liquid, semisolid, or solid substances containing nutrients needed to grow microorganisms.

Accepted Answer

The answer of __________ are liquid, semisolid, or solid substances...

Question 32

Which of the following causes viral hemorrhagic fever?&#10;A) Herpes simplex&#10;B) Variola minor&#10;C) Ebola virus&#10;D) Variola major

Accepted Answer

The answer of Which of the following causes viral hemorrhagic...

Question 33

The presence of microorganisms growing on a laboratory medium is called ____________________.

Accepted Answer

The answer of The presence of microorganisms growing on a...

Question 34

Having the pink color of the counterstain used in Gram's method refers to ____________________.

Accepted Answer

The answer of Having the pink color of the counterstain...

Question 35

Which of the following causes smallpox?&#10;A) Bacillus anthracis&#10;B) Yersinia pestis&#10;C) Francisella tularensis&#10;D) Variola major

Accepted Answer

The answer of Which of the following causes smallpox?&#10;A) Bacillus...

Question 36

Which of the following associations is incorrect?&#10;A) Staphylococcus/gram-positive cocci&#10;B) Escherichia coli/gram-positive bacilli&#10;C) Streptococcus pneumoniae/gram-positive diplococci&#10;D) Neisseria gonorrhoeae/gram-negative diplococci

Accepted Answer

The answer of Which of the following associations is incorrect?&#10;A)...

Question 37

The process of transferring microorganisms into or on a culture medium for growth is referred to as ____________________.

Accepted Answer

The answer of The process of transferring microorganisms into or...

Question 38

_______________ means an infection capable of forming pus.

Accepted Answer

The answer of _______________ means an infection capable of forming...

Question 39

In the following table, determine the color (pink/red, purple, or colorless) of the gram-positive and gram-negative organism after each step in the Gram stain reaction.&#10;

Accepted Answer

The answer of In the following table, determine the color...

Question 40

Match between columns&#10;                        Premises: An endemic flu virus that mutated from former gene viruses in swine, birds, and humans.&#10;An endemic flu virus that mutated from former gene viruses in swine, birds, and humans.&#10;An endemic flu virus that mutated from former gene viruses in swine, birds, and humans.&#10;An endemic flu virus that mutated from former gene viruses in swine, birds, and humans.&#10;An endemic flu virus that mutated from former gene viruses in swine, birds, and humans.&#10;It is estimated that up to3% of the world's population is infected with this virus that attacks the liver, which was identified in1989.It poses a threat to health care workers who are exposed to blood.&#10;It is estimated that up to3% of the world's population is infected with this virus that attacks the liver, which was identified in1989.It poses a threat to health care workers who are exposed to blood.&#10;It is estimated that up to3% of the world's population is infected with this virus that attacks the liver, which was identified in1989.It poses a threat to health care workers who are exposed to blood.&#10;It is estimated that up to3% of the world's population is infected with this virus that attacks the liver, which was identified in1989.It poses a threat to health care workers who are exposed to blood.&#10;It is estimated that up to3% of the world's population is infected with this virus that attacks the liver, which was identified in1989.It poses a threat to health care workers who are exposed to blood.&#10;This virus causes severe acute respiratory syndrome (SARS), a respiratory illness that was recently reported in Asia, North America, and Europe.&#10;This virus causes severe acute respiratory syndrome (SARS), a respiratory illness that was recently reported in Asia, North America, and Europe.&#10;This virus causes severe acute respiratory syndrome (SARS), a respiratory illness that was recently reported in Asia, North America, and Europe.&#10;This virus causes severe acute respiratory syndrome (SARS), a respiratory illness that was recently reported in Asia, North America, and Europe.&#10;This virus causes severe acute respiratory syndrome (SARS), a respiratory illness that was recently reported in Asia, North America, and Europe.&#10;This organism was first discovered in1977 after two simultaneous outbreaks in Africa (Sudan and Congo).It causes fever, extensive bleeding, and destruction of internal organs.&#10;This organism was first discovered in1977 after two simultaneous outbreaks in Africa (Sudan and Congo).It causes fever, extensive bleeding, and destruction of internal organs.&#10;This organism was first discovered in1977 after two simultaneous outbreaks in Africa (Sudan and Congo).It causes fever, extensive bleeding, and destruction of internal organs.&#10;This organism was first discovered in1977 after two simultaneous outbreaks in Africa (Sudan and Congo).It causes fever, extensive bleeding, and destruction of internal organs.&#10;This organism was first discovered in1977 after two simultaneous outbreaks in Africa (Sudan and Congo).It causes fever, extensive bleeding, and destruction of internal organs.&#10;This virus, first discovered in1981, is the cause of acquired immunodeficiency syndrome (AIDS).&#10;This virus, first discovered in1981, is the cause of acquired immunodeficiency syndrome (AIDS).&#10;This virus, first discovered in1981, is the cause of acquired immunodeficiency syndrome (AIDS).&#10;This virus, first discovered in1981, is the cause of acquired immunodeficiency syndrome (AIDS).&#10;This virus, first discovered in1981, is the cause of acquired immunodeficiency syndrome (AIDS).

Accepted Answer

The Answer of Coronavirus and Ebola virus and Influenza A is...

Question 41

Match between columns&#10;                        Premises: Diffuse muscle pain&#10;Diffuse muscle pain&#10;Diffuse muscle pain&#10;Diffuse muscle pain&#10;Diffuse muscle pain&#10;The rate at which an illness occurs&#10;The rate at which an illness occurs&#10;The rate at which an illness occurs&#10;The rate at which an illness occurs&#10;The rate at which an illness occurs&#10;The rate of deaths&#10;The rate of deaths&#10;The rate of deaths&#10;The rate of deaths&#10;The rate of deaths&#10;Feeling of weakness, distress, or discomfort&#10;Feeling of weakness, distress, or discomfort&#10;Feeling of weakness, distress, or discomfort&#10;Feeling of weakness, distress, or discomfort&#10;Feeling of weakness, distress, or discomfort&#10;Mass of hyphae that some fungi produce&#10;Mass of hyphae that some fungi produce&#10;Mass of hyphae that some fungi produce&#10;Mass of hyphae that some fungi produce&#10;Mass of hyphae that some fungi produce

Accepted Answer

The Answer of Morbidity and Mycelium and Myalgia and Mortality is...

Deck 8: Microbiology