Untitled Quiz

Sterilization

Disinfection

Antisepsis

<p>Degerming</p> Signup and view all the answers

<p>Sanitation</p> Signup and view all the answers

<p>Cidal agent</p> Signup and view all the answers

<p>Static agent</p> Signup and view all the answers

<p>Sepsis</p> Signup and view all the answers

<p>Nosocomial infections</p> Signup and view all the answers

<p>Number of microbes, environmental influence, time of exposure, and microbial characteristics.</p> Signup and view all the answers

<p>Moist heat and dry heat.</p> Signup and view all the answers

<p>Filtration</p> Signup and view all the answers

<p>Ionizing radiation, nonionizing radiation, and microwaves.</p> Signup and view all the answers

<p>Aerobic</p> Signup and view all the answers

<p>Anaerobic</p> Signup and view all the answers

<p>Facultative anaerobe</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Binary fission</p> Signup and view all the answers

<p>Generation time</p> Signup and view all the answers

<p>Lag phase, exponential phase, stationary phase, and death phase.</p> Signup and view all the answers

<p>Chemostat</p> Signup and view all the answers

<p>Both of the above</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Clostridium is an obligate anaerobe, meaning it cannot survive in the presence of oxygen, as it lacks the enzymes to detoxify reactive oxygen species. Streptococcus is a facultative anaerobe, which means it can grow in the presence or absence of oxygen.</p> Signup and view all the answers

<p>Number of microbes, environmental influence, and time of exposure.</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Streptokinase is an enzyme produced by Streptococcus bacteria, but it is not a viable bacterial cell. It acts by breaking down fibrin clots, which helps to restore blood flow, but it doesn't introduce live bacteria into the body.</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>High concentrations of salt or sugar create a hypertonic environment, causing water to move out of microbial cells, and dehydrating them. This inhibits microbial growth and preservation of food.</p> Signup and view all the answers

<p>The Ames test utilizes bacterial strains that are sensitive to mutagens, specifically Salmonella typhimurium strains that have a mutation in a gene involved in histidine biosynthesis. These strains are unable to grow on media lacking histidine. When a substance is potentially mutagenic, it can cause a reversion mutation in the bacteria, restoring their ability to synthesize histidine and allowing them to grow on a histidine-deficient medium.</p> Signup and view all the answers

<p>Antibiotic treatments can disrupt the natural balance of the microbiota, killing beneficial bacteria along with the targeted pathogens. This can create an opportunity for other opportunistic microbes to thrive and cause infections.</p> Signup and view all the answers

<p>The overuse and misuse of antibiotics can select for antibiotic-resistant bacteria, as the resistant strains have a survival advantage in the presence of the antibiotic. These resistant strains can then multiply and spread, leading to infections that are difficult to treat with traditional antibiotics.</p> Signup and view all the answers

<p>WAAW stands for the World Antibiotic Awareness Week, an annual global campaign aimed at raising awareness about antibiotic resistance and promoting responsible antibiotic use to prevent the further spread of this critical public health threat.</p> Signup and view all the answers