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MICRO TEST 3 DR. AL LSUE ACTUAL EXAM WITH VERIFIED QUESTIONS AND CORRECT ANSWERS| 2025/26, Exams of Microbiology

Louisiana State University (LSU) - EuniceMicrobiology

MICRO TEST 3 DR. AL LSUE ACTUAL EXAM WITH VERIFIED QUESTIONS AND CORRECT ANSWERS| 2025/2026.

Typology: Exams

2024/2025

Available from 07/13/2025

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MICRO TEST 3 DR. AL LSUE ACTUAL EXAM WITH
VERIFIED QUESTIONS AND CORRECT ANSWERS|
2025/2026.
1.
Hair follicle - Correct Answer-Which of the following is not parental route?
2.
Coagulation - Correct Answer-Which of the following is NOT a component of
invasiveness?
3.
All of the above (capsule, cell wall, hyaluronidase) - Correct Answer-Which of
the following components are part of invasiveness?
4.
Exotoxins - Correct Answer- are very specific
5.
Lipopolysaccharides - Correct Answer-Which of the following are endotoxins?
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe
pff
pf12
pf13
pf14
pf15

Partial preview of the text

Download MICRO TEST 3 DR. AL LSUE ACTUAL EXAM WITH VERIFIED QUESTIONS AND CORRECT ANSWERS| 2025/26 and more Exams Microbiology in PDF only on Docsity!

MICRO TEST 3 DR. AL LSUE ACTUAL EXAM WITH

VERIFIED QUESTIONS AND CORRECT ANSWERS|

  1. Hair follicle - Correct Answer-Which of the following is not parental route?
  2. Coagulation - Correct Answer-Which of the following is NOT a component of invasiveness?
  3. All of the above (capsule, cell wall, hyaluronidase) - Correct Answer-Which of the following components are part of invasiveness?
  4. Exotoxins - Correct Answer- are very specific
  5. Lipopolysaccharides - Correct Answer-Which of the following are endotoxins?
  1. They are killed at a constant rate - Correct Answer-What is the rate of Microbial death
  2. a manual in vitro diagnostic device used by laboratories to determine the MIC (answer will say something about the strips used in the device) - Correct Answer-What is an E Test?
  3. Hypochlorous acid - Correct Answer-What is the most effective form of chlorine?
  4. 70% - Correct Answer-What is the concentration of ethanol?
  5. The normal flora will be killed and you will become more susceptible to catch microbes - Correct Answer-If you use too much antibacterial soap, what happens?
  1. Fomites - Correct Answer-You can get pathogens from nonliving things called:
  2. Mechanical transmission - Correct Answer-Is the passive transport of the pathogens on the insect's feet or other body parts:
  3. Biological transmission - Correct Answer-Is an active process and is more complex; The arthropod bites an infected person or animal and ingests some of the infected blood
  4. all of the above - Correct Answer-How can emerging disease come about?
  5. Collect and analyzes the occurrence of the disease - Correct Answer-What does an epidemiologist do?
  1. The number of people affected by a disease in a given period of time in relation to the total population - Correct Answer-What is morbidity rate?
  2. Symptom - Correct Answer-A change in body function that is felt by a patient as a result of a disease:
  3. Sulfonamides - Correct Answer- inhibits folic acid synthesis
  4. The drugs are bacteriostatic and do not harm human cells because we take up folic acid from our diet rather than synthesize it - Correct Answer-what do sulfonamides have to do with therapeutic index (how it affects humans)?
  5. Host - Correct Answer-The organism that has a parasite living within it is the:
  1. Mucous membranes of the respiratory tract - Correct Answer-The most frequently used portal of entry for pathogens is the
  2. Lethal dose that will kill 50% of the test population - Correct Answer-The LD is a
  3. part of the gram-negative cell wall - Correct Answer-Endotoxins are:
  4. saliva - Correct Answer-Lysozyme is an enzyme found in tears and .
  5. Salmonella typhi - Correct Answer-Which of the following organisms doesn't produce an exotoxin?
  1. The body's defenses against any kind of pathogen - Correct Answer- Nonspecific resistance (innate immunity) is:
  2. Interferon - Correct Answer-If we are healthy, we have a high level of in our blood
  3. interferon is an antiviral protein - Correct Answer-Which of the following statements is "true" about interferon?
  4. immunity - Correct Answer-Your ability to ward off disease is called:
  5. cavitation - Correct Answer-Ultrasound kills by
  6. disinfection - Correct Answer-The killing of vegetative form of pathogenic microorganisms (usually on inanimate objects) is called
  1. incineration - Correct Answer-Which of the following is the best method for sterilization?
  2. Streptomyces - Correct Answer-Tetracyclines are derived from:
  3. all of the above - Correct Answer-Mechanisms by which antibiotics kill or inhibit microbial growth are:
  4. normal flora - Correct Answer-Microbes commonly present in or on the body are called
  5. Fleming - Correct Answer-Penicillin become widely used because of the work of:
  1. neutrophil - Correct Answer-PMN is another name for cell.
  2. hypothalamus - Correct Answer-The control center for fever development is located in the:
  3. self and nonself - Correct Answer-The immune system normally discriminates between antigens
  4. enter through hair follicles and sweat ducts - Correct Answer-Most pathogens that gain access through the skin
  5. Using antibiotics in animal feed - Correct Answer-Misuse of antibiotic resistances includes:
  1. Granulocytes (phagocytosis) - Correct Answer-Neutrophils, basophils, and eosinophils are:
  2. Cytolysis - Correct Answer-Involves the membrane attack complex
  3. Opsonization - Correct Answer-Immune adherence, promotes attachment of a phagocyte to a microbe
  4. IFN-alpha and IFN-beta - Correct Answer-Causes cells to produce antiviral proteins that inhibit viral replication
  5. membrane filtration - Correct Answer-The best method to sterilize heat labile solutions:
  6. ethylene oxide - Correct Answer-Chemical agents that is used for sterilization:
  1. chlorhexidine - Correct Answer-Substances used for surgical hand scrubs:
  2. alcohols effectively inactivate nonenveloped viruses by attacking lipids - Correct Answer-False statement regarding antimicrobial control agents:
  3. it cannot be used with heat labile materials - Correct Answer-A limitation of the autoclave
  4. decreased thermal death time - Correct Answer-Application of heat to living cells can result in all of the following except:
  5. bisphenol - Correct Answer-A disinfectant that acts by disrupting the plasma membrane
  1. heat, radiation, and some chemicals - Correct Answer-Results in lethal damage to nucleic acids:
  2. iodine mixed with a surfactant - Correct Answer-An iodophor is an:
  3. sterilizing agent - Correct Answer-Ethylene oxide is a
  4. biguanides - Correct Answer-Is NOT used to preserve food:
  5. boiling - Correct Answer-What is NOT effective in destroying prions:
  6. microwaves - Correct Answer-Which is not a method of food preservation:
  1. desiccation - Correct Answer-The preservation of beef jerky from microbial growth relies on which method of microbial control:
  2. pressure cooker @ 121 Celsius for 15 minutes - Correct Answer-If you were preparing nutrient agar at home and did not have an autoclave, what could you use to sterilize the nutrient agar:
  3. supercritical fluids - Correct Answer-Bone and tendons for transplant are decontaminated by:
  4. gram negative bacteria - Correct Answer-Most resistant to chemicalbiocides:
  5. None of the above - Correct Answer-All of the following factors contribute to hospital-acquired infections EXCEPT
  1. acquired during the course of hospitalization - Correct Answer-A nosocomial infection is
  2. microorganisms cause disease - Correct Answer-The major significance of Robert Koch's work is that
  3. botulism - Correct Answer-Which of the following diseases is not spread by droplet infection
  4. all of the following (tuberculosis, measles, the common cold, diptheria) - Correct Answer-Which of following diseases are spread by droplet infection
  5. local infection - Correct Answer-Focal infection initially start out as
  1. vaccinations - Correct Answer-The rise in herd immunity amongst a population can directly attributed to
  2. all of the following (sick person, a healthy person, a sick animal, a hospital) - Correct Answer-Which of the following is a reservoir of infection
  3. all of the following (malaria, AIDS, tuberculosis, typhoid fever) - Correct Answer-Which of the following are a communicable diseases
  4. Tetanus - Correct Answer-Which of the following is NOT a communicable diseases
  5. a hypodermic needle - Correct Answer-Which is a fomite