Biology
Antibiotics and Immunity
974 Questions
Prepare for your science sections with these questions on antibiotics and immunity. The hub covers various classes of antibiotics, their sources, and mechanisms of microbial resistance. It also addresses the human antiviral response.
Antibiotic classes and sourcesMicrobial resistance mechanismsAntiviral proteinsDisease treatments
Antibiotics and Immunity Questions
How is meningitis treated?
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Antibiotics
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Antiviral medications
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Antifungal medications
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Antiparasitic medications
A
Correct answer
Explanation
Meningitis is treated with antibiotics if it is caused by bacteria.
Which of the following is a Gram-positive bacterium that causes pneumonia and meningitis?
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Streptococcus pneumoniae
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Staphylococcus aureus
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Escherichia coli
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Pseudomonas aeruginosa
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Correct answer
Explanation
Streptococcus pneumoniae is a Gram-positive bacterium that is a common cause of pneumonia and meningitis.
Which of the following is a Gram-negative bacterium that causes urinary tract infections and sepsis?
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Escherichia coli
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Pseudomonas aeruginosa
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Staphylococcus aureus
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Streptococcus pneumoniae
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Correct answer
Explanation
Escherichia coli is a Gram-negative bacterium that is a common cause of urinary tract infections and sepsis.
Which of the following is an antibiotic that is used to treat bacterial infections?
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Penicillin
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Amoxicillin
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Erythromycin
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Tetracycline
A
Correct answer
Explanation
Penicillin is an antibiotic that is used to treat bacterial infections.
Which of the following is an antifungal drug that is used to treat fungal infections?
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Fluconazole
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Itraconazole
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Voriconazole
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Caspofungin
A
Correct answer
Explanation
Fluconazole is an antifungal drug that is used to treat fungal infections.
Which of the following bacteria is used in the production of antibiotics?
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Penicillium chrysogenum
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Streptomyces griseus
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Bacillus subtilis
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All of the above
D
Correct answer
Explanation
Penicillium chrysogenum, Streptomyces griseus, and Bacillus subtilis are all bacteria used in the production of antibiotics.
Which of the following is a common cause of sepsis in newborns?
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Group B Streptococcus (GBS)
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Escherichia coli (E. coli)
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Staphylococcus aureus
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All of the above
D
Correct answer
Explanation
Common causes of sepsis in newborns include Group B Streptococcus (GBS), Escherichia coli (E. coli), and Staphylococcus aureus.
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Live microorganisms that provide health benefits when consumed
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Antibiotics that kill harmful bacteria in the gut
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Enzymes that help digest food
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Proteins that build and repair tissues
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Correct answer
Explanation
Probiotics are live microorganisms, such as bacteria and yeasts, that provide health benefits when consumed. They are often found in fermented foods, such as yogurt, kefir, and sauerkraut.
What are some factors that can disrupt the gut microbiome?
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Antibiotics
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Stress
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Diet
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All of the above
D
Correct answer
Explanation
Antibiotics, stress, and diet can all disrupt the gut microbiome. Antibiotics kill both harmful and beneficial bacteria in the gut, while stress and an unhealthy diet can lead to an imbalance of gut bacteria.
Which type of microorganism is commonly used in the production of antibiotics?
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Bacteria
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Fungi
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Viruses
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Protozoa
A
Correct answer
Explanation
Bacteria, particularly certain species of Streptomyces and Bacillus, are commonly used in the production of antibiotics. These bacteria produce natural compounds that have antibacterial or antifungal properties, which can be extracted and used to treat infections.
Which microorganism is responsible for the production of penicillin, a widely used antibiotic?
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Penicillium chrysogenum
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Streptococcus pneumoniae
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Staphylococcus aureus
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Escherichia coli
A
Correct answer
Explanation
Penicillium chrysogenum, a type of fungus, is responsible for the production of penicillin, a widely used antibiotic. Penicillin was discovered by Alexander Fleming in 1928 and has since revolutionized the treatment of bacterial infections.
Which microorganism is responsible for the production of the antibiotic erythromycin?
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Streptomyces erythreus
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Penicillium chrysogenum
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Bacillus subtilis
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Escherichia coli
A
Correct answer
Explanation
Streptomyces erythreus, a type of bacteria, is responsible for the production of the antibiotic erythromycin. Erythromycin is a widely used antibiotic that is effective against a variety of bacterial infections.
Which microorganism is responsible for the production of the antibiotic tetracycline?
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Streptomyces aureofaciens
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Penicillium chrysogenum
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Bacillus subtilis
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Escherichia coli
A
Correct answer
Explanation
Streptomyces aureofaciens, a type of bacteria, is responsible for the production of the antibiotic tetracycline. Tetracycline is a widely used antibiotic that is effective against a variety of bacterial infections.
Which of the following is NOT a type of antibiotic?
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Penicillin
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Amoxicillin
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Tetracycline
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Ibuprofen
D
Correct answer
Explanation
Ibuprofen is not an antibiotic.
What is the term for the resistance of microbes to antibiotics?
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Antibiotic resistance
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Antimicrobial resistance
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Drug resistance
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All of the above
D
Correct answer
Explanation
Antibiotic resistance, antimicrobial resistance, and drug resistance all refer to the resistance of microbes to antibiotics.