Bacteria Quiz

Which of the following is NOT a symptom of C. difficile infection?

• Bloating

• Diarrhea

• Stomach pain

• Headache

What can happen after antibiotics wipe out good bacteria in the gut?

• C. difficile takes over and produces poisons

• The gut becomes healthier

• The body produces more vitamins

• The stomach becomes stronger

Why do most strains of E. coli not cause disease in humans?

• They are destroyed by stomach acid

• They are helpful and perform useful functions like making vitamin K and protecting the gut

• They cannot survive in the human body

• They only live in water

What happens if a C. jejuni infection does not clear up in a few days?

• It always goes away on its own

• It becomes less severe

• It may become more severe and need antibiotics

• It turns into a cold

What is a fun fact about B. animalis and yogurt?

• Yogurt contains no bacteria

• Billions of B. animalis are in yogurt

• B. animalis makes yogurt taste sour

• Yogurt destroys B. animalis

What allows C. difficile to survive when exposed to oxygen?

• It forms a tough shell

• It hides inside other bacteria

• It becomes invisible

• It turns into a virus

What can happen if B. fragilis escapes the gut?

• It helps with digestion

• It attacks human cells and causes dangerous infections

• It produces vitamins

• It prevents allergies

Where is C. jejuni most commonly found in the environment?

• In humans

• In birds and cattle

• In plants

• In water only

Why is C. difficile considered dangerous?

• It can sometimes cause death

• It helps with digestion

• It makes food taste worse

• It destroys vitamins

Where does E. coli usually live?

• In the soil

• In the guts of humans/mammals

• On plant leaves

• In the ocean