WorksheetsB. fragilis Bacteria Quiz
Total questions: 10
Worksheet time: 5mins
What is the normal population of B. fragilis bacteria in the healthy gut microbiome?
0.1%
0.5%
1%
5%
How do B. fragilis bacteria help strengthen the body's defenses?
By producing immune cells
By attacking harmful bacteria
By sticking to the gut wall
By repairing gut cells
What is the main reason why B. fragilis bacteria can thrive in the human gut?
They can break down undigested food
They can attack human cells
They can produce substances that keep gut cells healthy
They can escape from the gut
What happens when B. fragilis bacteria escape from the gut?
They attack human cells and use them as food
They strengthen the body's defenses
They prevent harmful microorganisms from moving in
They produce substances that repair and protect gut cells
Why are B. fragilis bacteria hard for the body's defenses to fight outside the gut?
Because they attack immune cells
Because they produce substances that weaken the immune system
Because they can use human cells as food
Because they can escape from the body
What can happen if the gut wall is damaged?
B. fragilis bacteria become harmless
B. fragilis bacteria become helpful
B. fragilis bacteria become dangerous
B. fragilis bacteria become inactive
What is the role of B. fragilis bacteria in the human gut?
To attack harmful bacteria
To produce substances that repair gut cells
To prevent harmful microorganisms from moving in
To weaken the immune system
Why are many antibiotics not effective against B. fragilis infections?
Because B. fragilis bacteria can escape from the body
Because B. fragilis bacteria attack immune cells
Because B. fragilis bacteria produce substances that weaken the immune system
Because B. fragilis bacteria can use human cells as food
What can happen if there are fewer helpful bacteria like B. fragilis in the gut?
More harmful bacteria can live and cause infection
The immune system becomes stronger
The gut cells become healthier
The body becomes more resistant to diseases
What is the main source of food for B. fragilis bacteria in the human gut?
Undigested food
Harmful bacteria
Gut cells
Immune cells
