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FNRL 296
Microbiology
| Question | Answer |
|---|---|
| What are poisonous substances produced by bacteria and released only when the bacterial cells die and disintegrate? | Endotoxins |
| Microaerophilic organisms grow best in environments with: | Reduced oxygen levels |
| In the transmission of the Zika virus, the mosquito is acting as which of the following? | Biological vector |
| A facultative aerobe prefers: | Prefers oxygen but can live without it |
| Bacteria are considered to be? | Prokaryotic |
| What term is defined as the invasion of the body by living microorganisms with subsequent multiplication and disease production? | Infection |
| Fungicides are most effective against organisms that: | Produce spores and lack chlorophyll |
| Those bacteria that grow best at a relatively low temperature are? | Psychrophilic |
| Local skin abscesses are infections usually caused by the members of the genus? | Staphylococcus |
| Which of these is an example of pathogenic protozoa? | Entamoeba histolytica |
| Thermophiles grow best at temperatures between: | 40°C and 70°C |
| Which of the following substances is most specific in antimicrobial action? | Antibodies |
| Rabies is also called? | Hydrophobia |
| A primary infection is one that: | Occurs in an otherwise healthy individual |
| What part of the body is affected by encephalitis? | The brain |
| Psychrophiles would be LEAST likely to grow in: | 40°C environments |
| The prefix "staphylo" refers to an organism's tendency to? | Occur in grape-like clusters |
| Rickettsia grow only as? | Parasites |
| What term is defined as the degree of the ability of a microorganism to cause disease? | Virulence |
| Which of the following is a quaternary ammonium compound? | Zephiran chloride |
| Normal flora benefit the host by: | Competing with pathogens and maintaining balance. |
| A visible mass of bacterial growth resulting from the reproduction of a single cell is a? | Colony |
| An opportunist is best described as an organism that: | Can become pathogenic when host resistance is lowered. |
| Symbiosis is best defined as: | Living together in close association between different species |
| The bacterial cell wall is: | A rigid outer structure providing shape and protection |
| Lymphogranuloma venereum is caused by a? | Chlamydia |
| An infection which is caused by organisms already present in the body is best described as? | Endogenous |
| Which of the following is caused by a member of the genus Staphylococcus? | Food poisoning |
| Attenuation affects a pathogen by? | Decreasing virulence |
| What control process is used to destroy something of no value? | Incineration |
| The autoclave usually generates a temperature of about? | 121 degrees C |
| An example of mutualism would be: | Gut bacteria assisting in digestion while receiving nutrients. |
| Syphilis is an infection caused by? | Treponema pallidum |
| A virus is a? | Strict parasite |
| Binary fission is best defined as: | Asexual division creating two genetically identical cells. |
| Monilia is used synonymously with? | Candida |
| What type of virus would have an affinity for the liver? | Viscerotropic |
| A mechanical vector is an organism that: | Allows pathogen development inside its body. |
| Which of the following organisms has a high lipid or wax content of the cell wall? | Mycobacterium tuberculosis |
| Microaerophilic organisms grow best in environments with: | Reduced oxygen levels |
| Bacteria that require organic chemical compounds for nourishment are? | Heterotrophic |
| Yersinia pestis causes? | Plague |
| Which of the following is a biological vector? | An arthropod that carries and allows development of a pathogen. |
| Osmotic pressure develops when: | Two solutions of different concentrations are separated by a semipermeable membrane. |
| A germicide is defined as a substance that: | Destroys microorganisms |
| A spirochete differs from a spirillum because a spirochete: | Has a flexible cell wall |
| The tissue gas of gas gangrene is specifically caused by ___. | Clostridium perfringens |
| Psychrophiles prefer temperatures between: | 0°C and 25°C. |
| Silver nitrate prophylaxis was once used for the control of? | Ophthalmia neonatorum |
| Which organism causes the disease known as thrush? | Candida |
| Endospore formation is characteristic of? | Bacillus anthracis |
| Vibrio bacteria are: | Curved or bent rods resembling commas |
| Those bacteria which grow best at temperatures between 30 and 40 degrees Celsius are classified as ___. | Mesophilic bacteria |
| A reduction in the virulence of a microorganism is known as: | Attenuation |
| A facultative aerobe prefers: | Environments with no oxygen but can tolerate oxygen. |
| What is the proper term for smallpox? | Variola |
| The Kingdom which includes single cell organisms which are classified by their type of motility: pseudopodia, cilia, or flagella, is: | Protista |
| Lack of resistance to a specific disease is called? | Susceptibility |
| The maximum temperature for bacterial growth is defined as: | The highest temperature at which a bacterium can grow. |
| Toxins can originate from all the following EXCEPT: | Rocks |
| A facultative aerobe prefers: | Environments with no oxygen but can tolerate oxygen. |
| A mechanical vector is an organism that: | Transfers pathogens without internal growth. |
| Those bacteria that prefer to live in the presence of free oxygen but can live in its absence are classified as: | Facultative |
| The causative agent of typhus fever is a? | Rickettsia |
| Which of these is primarily bacteriostatic in its action? | Cold |
| A strict (obligate) anaerobe is defined as a microorganism that: | Cannot survive in the presence of oxygen. |
| An exotoxin is produced: | Inside a living bacterial cell and secreted outward. |
Created by:
WendigoBunny