Quiz on E. coli Bacteria

What is the common reputation of E. coli bacteria?

• Helpful bacteria

• Harmful bacteria

• Neutral bacteria

• Unknown bacteria

At what temperature do E. coli bacteria grow best?

• 25°C (77°F)

• 37°C (98.6°F)

• 45°C (113°F)

• 50°C (122°F)

What role do E. coli bacteria play in the human gut?

• They cause diseases

• They help digest food and prevent harmful microorganisms

• They produce toxins

• They cause inflammation

What is the size of E. coli bacteria as seen under a powerful microscope?

• 1 micrometer

• 2 micrometers

• 3 micrometers

• 4 micrometers

How quickly can E. coli move into and multiply in a newborn baby's gut after birth?

• Within 24 hours

• Within 40 hours

• Within 72 hours

• Within a week

What is the role of helpful E. coli in the gut?

• They help produce mucus to protect gut cells

• They cause infections

• They increase harmful bacteria

• They cause food poisoning

What happens when there are fewer helpful bacteria in the gut?

• There is more space and food available for harmful bacteria

• The gut cells become stronger

• The gut produces more mucus

• The harmful bacteria decrease

What is the reputation of E. coli due to the harmful types?

• E. coli is known to be beneficial

• E. coli has a bad reputation

• E. coli is known to be harmless

• E. coli is known to be rare

What is the effect of helpful bacteria like E. coli on the gut cells?

• They protect gut cells from infection

• They cause infections

• They reduce mucus production

• They increase harmful bacteria

What is the main difference between the two diagrams showing human gut cells?

• The amount of mucus produced

• The presence of harmful bacteria

• The number of gut cells

• The presence of helpful bacteria