MicroBiome Quiz

Quiz Your Knowledge: Select an answer. If you answer correctly you receive a point for a correct answer. Good luck!

1. All of the microbes in the human body are collectively called:

A. Viruses
B. Human genome
C. Microbiome
D. Biofilm

2. Fungi such as Aspergillus are part of which domain?

A. Eukaryotes
B. Bacteria
C. Archeabacteria
D. Viruses

3. Which of the following is not a hotspot for microbial life on the human body?

A. Oral cavity
B. Skin
C. Nasal cavity
D. Hair

4. Which of the following is false about microbes in the nasal cavity?

A. S. epidermidis and S. aureus form a biofilm that coats the mucosal lining
B. Oral antibiotics do not disturb the mucosal biofilm
C. Allergic reactions cause inflammation that disturbs the mucosal biofilm
D. Cilia and mucosal lining trap inhaled microbes

5. Which of the following is true about microbes in the oral cavity?

A. Fusobacterium is a fungus that causes an oral infection known as thrush
B. Oral microbes form an elaborate scaffold on the tooth enamel at the interface with the gums
C. Tooth brushing washes away all of the oral microbes every day
D. Eating extremely hot or cold food kills off all of the oral microbes

6.  Which of the following is false about microbes on the skin?

A. Washing hands vigorously with soap removes all microbes from that part of the skin
B. Some native microbes release chemicals to protect the host from invading microbes
C. P. acnes is normally found in healthy pores
D. P. acnes grows out of control, along with other bacterial species, when a pore becomes clogged

7. Which of the following is false about microbes in the gut?

A. Gene transfer between the wide variety of species in the gut can give rise to multiply drug resistant “superbugs”
B. Gut microbes contribute to digestion and vitamin production
C. Methanobrevibacteria smithii archeabacteria has a helical shape and is known to be a major cause of stomach ulcers
D. It is a major challenge for most orally consumed microbes to survive the stomach pH, as well as bile and saliva enzymes

8.  Which of the following is true about microbes in the urogenital system?

A. E.coli cannot grow in urine
B. Since catheters are always sterile, they do not cause bladder infections in hospital patients
C. Urine flow and chemicals such as urea typically can keep the urinary system practically sterile from microbes
D. Lactobacillus is a fungus that causes yeast infections

9.  Which of the following is true?

A. Oral antibiotics specifically kill invading bacteria but not native bacteria
B. Gut flora can modify some drugs during metabolism, resulting in side effects for the user
C. There are hundreds of microbes per square inch on your body
D. The human microbiome includes human body cells, fungi, and bacteria, but there are no archaebacteria or viruses

10. Which of the following is false?

A. The number and amount of many different microbes can vary from person to person
B. The Human Microbiome Project includes research on the relative amount of different microbes present at different locations in the body
C. The variation of different people’s amounts and particular species of gut microbes can affect different people’s digestive problems
D. All antimicrobial products are so named because they kill 100% of microbes. This prevents any antibiotic resistant germs from surviving


Congratulations on finishing the test!