6th Grade · Science · Quiz · shared by Luke Morgan
Download a free 6th Grade Science quiz on Probiotics and Prebiotics. Explore key concepts about helpful bacteria and gut health.
Multiple Choice
1. _____ According to the passage, what is the microscopic hero called Lactobacillus rhamnosus?
A. A harmful germ
B. A helpful probiotic
C. A digestive juice
D. An intestinal tube
2. _____ Why is the human stomach considered a dangerous environment for most bacteria?
A. It is filled with highly acidic liquids
B. It contains tiny hair-like structures
C. It is too long and winding
D. It lacks any nutrients for bacteria
3. _____ What special defense does L. rhamnosus use to survive the stomach's acid?
A. A microscopic anchor
B. A physical barrier of cells
C. A protective layer of proteins
D. Tiny hair-like pili
4. _____ What is the primary purpose of the acidic liquids in the stomach?
A. To help bacteria colonize
B. To build a stable community
C. To break down food and kill harmful invaders
D. To produce substances that absorb nutrients
5. _____ Which structure allows the bacterium to attach to the intestinal lining?
A. Protein armor
B. Digestive juices
C. Pili
D. Symbiosis
6. _____ What is the name of the process where bacteria build a stable community in the digestive tract?
A. Dissolving
B. Symbiosis
C. Colonization
D. Absorption
7. _____ According to the text, how do probiotics protect the body from dangerous germs?
A. By creating a physical barrier
B. By producing stomach acid
C. By dissolving harmful cells
D. By becoming microscopic anchors
8. _____ Which benefit do probiotics provide regarding the food humans eat?
A. They turn food into protein armor
B. They help the body absorb nutrients
C. They prevent food from entering the intestines
D. They make the stomach more acidic
9. _____ The text uses the term symbiosis to describe the relationship between probiotics and humans. What does this mean?
A. One organism destroys another
B. Two organisms live together and provide benefits